Finding the Third Proportional to 439,057.50 and 912,558

Step by Step Solution

1. Step 1: Write the proportion equation
   439,057.50 : 912,558 = 912,558 : x
2. Step 2: Convert to fraction form
   439,057.50/912,558 = 912,558/x
3. Step 3: Cross multiply
   439,057.50x = 912,558 × 912,558
4. Step 4: Simplify right side
   439,057.50x = 832,762,103,364
5. Step 5: Solve for x
   x = 832,762,103,364/439,057.50
6. Step 6: Final answer
   x = 1,896,703.97