Finding the Third Proportional to 198,637.59 and 434,411.72

Step by Step Solution

1. Step 1: Write the proportion equation
   198,637.59 : 434,411.72 = 434,411.72 : x
2. Step 2: Convert to fraction form
   198,637.59/434,411.72 = 434,411.72/x
3. Step 3: Cross multiply
   198,637.59x = 434,411.72 × 434,411.72
4. Step 4: Simplify right side
   198,637.59x = 188,713,541,387.33
5. Step 5: Solve for x
   x = 188,713,541,387.33/198,637.59
6. Step 6: Final answer
   x = 950,039.41