Finding the Third Proportional to 556,585.50 and 845,499

Step by Step Solution

1. Step 1: Write the proportion equation
   556,585.50 : 845,499 = 845,499 : x
2. Step 2: Convert to fraction form
   556,585.50/845,499 = 845,499/x
3. Step 3: Cross multiply
   556,585.50x = 845,499 × 845,499
4. Step 4: Simplify right side
   556,585.50x = 714,868,559,001
5. Step 5: Solve for x
   x = 714,868,559,001/556,585.50
6. Step 6: Final answer
   x = 1,284,382.29