Finding the Third Proportional to 14,917,920 and 21,056,541

Step by Step Solution

1. Step 1: Write the proportion equation
   14,917,920 : 21,056,541 = 21,056,541 : x
2. Step 2: Convert to fraction form
   14,917,920/21,056,541 = 21,056,541/x
3. Step 3: Cross multiply
   14,917,920x = 21,056,541 × 21,056,541
4. Step 4: Simplify right side
   14,917,920x = 443,377,918,884,681
5. Step 5: Solve for x
   x = 443,377,918,884,681/14,917,920
6. Step 6: Final answer
   x = 29,721,162.12