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Finding the Third Proportional to 1,287,978 and 2,002,864.50

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Solution

The third proportional to 1,287,978 and 2,002,864.50 is: 3,114,545.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,978 : 2,002,864.50 = 2,002,864.50 : x
  2. Step 2: Convert to fraction form
    1,287,978/2,002,864.50 = 2,002,864.50/x
  3. Step 3: Cross multiply
    1,287,978x = 2,002,864.50 × 2,002,864.50
  4. Step 4: Simplify right side
    1,287,978x = 4,011,466,205,360.25
  5. Step 5: Solve for x
    x = 4,011,466,205,360.25/1,287,978
  6. Step 6: Final answer
    x = 3,114,545.59

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