Finding the Third Proportional to 988,532 and 2,158,288

Step by Step Solution

1. Step 1: Write the proportion equation
   988,532 : 2,158,288 = 2,158,288 : x
2. Step 2: Convert to fraction form
   988,532/2,158,288 = 2,158,288/x
3. Step 3: Cross multiply
   988,532x = 2,158,288 × 2,158,288
4. Step 4: Simplify right side
   988,532x = 4,658,207,090,944
5. Step 5: Solve for x
   x = 4,658,207,090,944/988,532
6. Step 6: Final answer
   x = 4,712,247.14