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Finding the Third Proportional to 666,978 and 998,633

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Solution

The third proportional to 666,978 and 998,633 is: 1,495,203.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,978 : 998,633 = 998,633 : x
  2. Step 2: Convert to fraction form
    666,978/998,633 = 998,633/x
  3. Step 3: Cross multiply
    666,978x = 998,633 × 998,633
  4. Step 4: Simplify right side
    666,978x = 997,267,868,689
  5. Step 5: Solve for x
    x = 997,267,868,689/666,978
  6. Step 6: Final answer
    x = 1,495,203.54

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