Finding the Third Proportional to 684,911.25 and 1,090,789.88

Step by Step Solution

1. Step 1: Write the proportion equation
   684,911.25 : 1,090,789.88 = 1,090,789.88 : x
2. Step 2: Convert to fraction form
   684,911.25/1,090,789.88 = 1,090,789.88/x
3. Step 3: Cross multiply
   684,911.25x = 1,090,789.88 × 1,090,789.88
4. Step 4: Simplify right side
   684,911.25x = 1,189,822,551,402.52
5. Step 5: Solve for x
   x = 1,189,822,551,402.52/684,911.25
6. Step 6: Final answer
   x = 1,737,192.30