Finding the Third Proportional to 429,602.50 and 631,250

Step by Step Solution

1. Step 1: Write the proportion equation
   429,602.50 : 631,250 = 631,250 : x
2. Step 2: Convert to fraction form
   429,602.50/631,250 = 631,250/x
3. Step 3: Cross multiply
   429,602.50x = 631,250 × 631,250
4. Step 4: Simplify right side
   429,602.50x = 398,476,562,500
5. Step 5: Solve for x
   x = 398,476,562,500/429,602.50
6. Step 6: Final answer
   x = 927,547.12