Finding the Third Proportional to 988,872 and 2,117,712

Step by Step Solution

1. Step 1: Write the proportion equation
   988,872 : 2,117,712 = 2,117,712 : x
2. Step 2: Convert to fraction form
   988,872/2,117,712 = 2,117,712/x
3. Step 3: Cross multiply
   988,872x = 2,117,712 × 2,117,712
4. Step 4: Simplify right side
   988,872x = 4,484,704,114,944
5. Step 5: Solve for x
   x = 4,484,704,114,944/988,872
6. Step 6: Final answer
   x = 4,535,171.50