Finding the Third Proportional to 502,777 and 703,287.50

Step by Step Solution

1. Step 1: Write the proportion equation
   502,777 : 703,287.50 = 703,287.50 : x
2. Step 2: Convert to fraction form
   502,777/703,287.50 = 703,287.50/x
3. Step 3: Cross multiply
   502,777x = 703,287.50 × 703,287.50
4. Step 4: Simplify right side
   502,777x = 494,613,307,656.25
5. Step 5: Solve for x
   x = 494,613,307,656.25/502,777
6. Step 6: Final answer
   x = 983,762.80