Finding the Third Proportional to 615,370 and 1,329,156

Step by Step Solution

1. Step 1: Write the proportion equation
   615,370 : 1,329,156 = 1,329,156 : x
2. Step 2: Convert to fraction form
   615,370/1,329,156 = 1,329,156/x
3. Step 3: Cross multiply
   615,370x = 1,329,156 × 1,329,156
4. Step 4: Simplify right side
   615,370x = 1,766,655,672,336
5. Step 5: Solve for x
   x = 1,766,655,672,336/615,370
6. Step 6: Final answer
   x = 2,870,883.65