Finding the Third Proportional to 408,061.13 and 633,985.31

Step by Step Solution

1. Step 1: Write the proportion equation
   408,061.13 : 633,985.31 = 633,985.31 : x
2. Step 2: Convert to fraction form
   408,061.13/633,985.31 = 633,985.31/x
3. Step 3: Cross multiply
   408,061.13x = 633,985.31 × 633,985.31
4. Step 4: Simplify right side
   408,061.13x = 401,937,376,465.72
5. Step 5: Solve for x
   x = 401,937,376,465.72/408,061.13
6. Step 6: Final answer
   x = 984,993.06