Finding the Third Proportional to 515,046.50 and 784,564

Step by Step Solution

1. Step 1: Write the proportion equation
   515,046.50 : 784,564 = 784,564 : x
2. Step 2: Convert to fraction form
   515,046.50/784,564 = 784,564/x
3. Step 3: Cross multiply
   515,046.50x = 784,564 × 784,564
4. Step 4: Simplify right side
   515,046.50x = 615,540,670,096
5. Step 5: Solve for x
   x = 615,540,670,096/515,046.50
6. Step 6: Final answer
   x = 1,195,116.69