Finding the Third Proportional to 607,299 and 865,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   607,299 : 865,105.50 = 865,105.50 : x
2. Step 2: Convert to fraction form
   607,299/865,105.50 = 865,105.50/x
3. Step 3: Cross multiply
   607,299x = 865,105.50 × 865,105.50
4. Step 4: Simplify right side
   607,299x = 748,407,526,130.25
5. Step 5: Solve for x
   x = 748,407,526,130.25/607,299
6. Step 6: Final answer
   x = 1,232,354.29