Finding the Third Proportional to 409,875 and 627,250.50

Step by Step Solution

1. Step 1: Write the proportion equation
   409,875 : 627,250.50 = 627,250.50 : x
2. Step 2: Convert to fraction form
   409,875/627,250.50 = 627,250.50/x
3. Step 3: Cross multiply
   409,875x = 627,250.50 × 627,250.50
4. Step 4: Simplify right side
   409,875x = 393,443,189,750.25
5. Step 5: Solve for x
   x = 393,443,189,750.25/409,875
6. Step 6: Final answer
   x = 959,910.19