Finding the Third Proportional to 399,887.50 and 844,730

Step by Step Solution

1. Step 1: Write the proportion equation
   399,887.50 : 844,730 = 844,730 : x
2. Step 2: Convert to fraction form
   399,887.50/844,730 = 844,730/x
3. Step 3: Cross multiply
   399,887.50x = 844,730 × 844,730
4. Step 4: Simplify right side
   399,887.50x = 713,568,772,900
5. Step 5: Solve for x
   x = 713,568,772,900/399,887.50
6. Step 6: Final answer
   x = 1,784,423.80