Finding the Third Proportional to 474,417 and 627,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   474,417 : 627,061.50 = 627,061.50 : x
2. Step 2: Convert to fraction form
   474,417/627,061.50 = 627,061.50/x
3. Step 3: Cross multiply
   474,417x = 627,061.50 × 627,061.50
4. Step 4: Simplify right side
   474,417x = 393,206,124,782.25
5. Step 5: Solve for x
   x = 393,206,124,782.25/474,417
6. Step 6: Final answer
   x = 828,819.64