Finding the Third Proportional to 557,232 and 1,221,300

Step by Step Solution

1. Step 1: Write the proportion equation
   557,232 : 1,221,300 = 1,221,300 : x
2. Step 2: Convert to fraction form
   557,232/1,221,300 = 1,221,300/x
3. Step 3: Cross multiply
   557,232x = 1,221,300 × 1,221,300
4. Step 4: Simplify right side
   557,232x = 1,491,573,690,000
5. Step 5: Solve for x
   x = 1,491,573,690,000/557,232
6. Step 6: Final answer
   x = 2,676,755.27