Finding the Third Proportional to 287,186.50 and 626,596

Step by Step Solution

1. Step 1: Write the proportion equation
   287,186.50 : 626,596 = 626,596 : x
2. Step 2: Convert to fraction form
   287,186.50/626,596 = 626,596/x
3. Step 3: Cross multiply
   287,186.50x = 626,596 × 626,596
4. Step 4: Simplify right side
   287,186.50x = 392,622,547,216
5. Step 5: Solve for x
   x = 392,622,547,216/287,186.50
6. Step 6: Final answer
   x = 1,367,134.41