Finding the Third Proportional to 13,722,942 and 20,126,061

Step by Step Solution

1. Step 1: Write the proportion equation
   13,722,942 : 20,126,061 = 20,126,061 : x
2. Step 2: Convert to fraction form
   13,722,942/20,126,061 = 20,126,061/x
3. Step 3: Cross multiply
   13,722,942x = 20,126,061 × 20,126,061
4. Step 4: Simplify right side
   13,722,942x = 405,058,331,375,721
5. Step 5: Solve for x
   x = 405,058,331,375,721/13,722,942
6. Step 6: Final answer
   x = 29,516,872.65