Finding the Third Proportional to 615,374 and 1,329,164

Step by Step Solution

1. Step 1: Write the proportion equation
   615,374 : 1,329,164 = 1,329,164 : x
2. Step 2: Convert to fraction form
   615,374/1,329,164 = 1,329,164/x
3. Step 3: Cross multiply
   615,374x = 1,329,164 × 1,329,164
4. Step 4: Simplify right side
   615,374x = 1,766,676,938,896
5. Step 5: Solve for x
   x = 1,766,676,938,896/615,374
6. Step 6: Final answer
   x = 2,870,899.55