Finding the Third Proportional to 557,468 and 1,223,200

Step by Step Solution

1. Step 1: Write the proportion equation
   557,468 : 1,223,200 = 1,223,200 : x
2. Step 2: Convert to fraction form
   557,468/1,223,200 = 1,223,200/x
3. Step 3: Cross multiply
   557,468x = 1,223,200 × 1,223,200
4. Step 4: Simplify right side
   557,468x = 1,496,218,240,000
5. Step 5: Solve for x
   x = 1,496,218,240,000/557,468
6. Step 6: Final answer
   x = 2,683,953.59