Finding the Third Proportional to 452,103.50 and 615,687

Step by Step Solution

1. Step 1: Write the proportion equation
   452,103.50 : 615,687 = 615,687 : x
2. Step 2: Convert to fraction form
   452,103.50/615,687 = 615,687/x
3. Step 3: Cross multiply
   452,103.50x = 615,687 × 615,687
4. Step 4: Simplify right side
   452,103.50x = 379,070,481,969
5. Step 5: Solve for x
   x = 379,070,481,969/452,103.50
6. Step 6: Final answer
   x = 838,459.52