Finding the Third Proportional to 361,711.50 and 785,688

Step by Step Solution

1. Step 1: Write the proportion equation
   361,711.50 : 785,688 = 785,688 : x
2. Step 2: Convert to fraction form
   361,711.50/785,688 = 785,688/x
3. Step 3: Cross multiply
   361,711.50x = 785,688 × 785,688
4. Step 4: Simplify right side
   361,711.50x = 617,305,633,344
5. Step 5: Solve for x
   x = 617,305,633,344/361,711.50
6. Step 6: Final answer
   x = 1,706,624.29