Finding the Third Proportional to 988,484 and 2,158,246

Step by Step Solution

1. Step 1: Write the proportion equation
   988,484 : 2,158,246 = 2,158,246 : x
2. Step 2: Convert to fraction form
   988,484/2,158,246 = 2,158,246/x
3. Step 3: Cross multiply
   988,484x = 2,158,246 × 2,158,246
4. Step 4: Simplify right side
   988,484x = 4,658,025,796,516
5. Step 5: Solve for x
   x = 4,658,025,796,516/988,484
6. Step 6: Final answer
   x = 4,712,292.56