Finding the Third Proportional to 2,672,129 and 5,722,609

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672,129 : 5,722,609 = 5,722,609 : x
2. Step 2: Convert to fraction form
   2,672,129/5,722,609 = 5,722,609/x
3. Step 3: Cross multiply
   2,672,129x = 5,722,609 × 5,722,609
4. Step 4: Simplify right side
   2,672,129x = 32,748,253,766,881
5. Step 5: Solve for x
   x = 32,748,253,766,881/2,672,129
6. Step 6: Final answer
   x = 12,255,491.32