Finding the Third Proportional to 988,244 and 2,157,200

Step by Step Solution

1. Step 1: Write the proportion equation
   988,244 : 2,157,200 = 2,157,200 : x
2. Step 2: Convert to fraction form
   988,244/2,157,200 = 2,157,200/x
3. Step 3: Cross multiply
   988,244x = 2,157,200 × 2,157,200
4. Step 4: Simplify right side
   988,244x = 4,653,511,840,000
5. Step 5: Solve for x
   x = 4,653,511,840,000/988,244
6. Step 6: Final answer
   x = 4,708,869.31