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Finding the Third Proportional to 478,978 and 798,263

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Solution

The third proportional to 478,978 and 798,263 is: 1,330,382.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,978 : 798,263 = 798,263 : x
  2. Step 2: Convert to fraction form
    478,978/798,263 = 798,263/x
  3. Step 3: Cross multiply
    478,978x = 798,263 × 798,263
  4. Step 4: Simplify right side
    478,978x = 637,223,817,169
  5. Step 5: Solve for x
    x = 637,223,817,169/478,978
  6. Step 6: Final answer
    x = 1,330,382.22

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