Finding the Third Proportional to 638,473 and 952,172.50

Step by Step Solution

1. Step 1: Write the proportion equation
   638,473 : 952,172.50 = 952,172.50 : x
2. Step 2: Convert to fraction form
   638,473/952,172.50 = 952,172.50/x
3. Step 3: Cross multiply
   638,473x = 952,172.50 × 952,172.50
4. Step 4: Simplify right side
   638,473x = 906,632,469,756.25
5. Step 5: Solve for x
   x = 906,632,469,756.25/638,473
6. Step 6: Final answer
   x = 1,420,001.27