Finding the Third Proportional to 2,513,139 and 5,487,151

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513,139 : 5,487,151 = 5,487,151 : x
2. Step 2: Convert to fraction form
   2,513,139/5,487,151 = 5,487,151/x
3. Step 3: Cross multiply
   2,513,139x = 5,487,151 × 5,487,151
4. Step 4: Simplify right side
   2,513,139x = 30,108,826,096,801
5. Step 5: Solve for x
   x = 30,108,826,096,801/2,513,139
6. Step 6: Final answer
   x = 11,980,565.38