Finding the Third Proportional to 13,812,120 and 21,619,872

Step by Step Solution

1. Step 1: Write the proportion equation
   13,812,120 : 21,619,872 = 21,619,872 : x
2. Step 2: Convert to fraction form
   13,812,120/21,619,872 = 21,619,872/x
3. Step 3: Cross multiply
   13,812,120x = 21,619,872 × 21,619,872
4. Step 4: Simplify right side
   13,812,120x = 467,418,865,296,384
5. Step 5: Solve for x
   x = 467,418,865,296,384/13,812,120
6. Step 6: Final answer
   x = 33,841,210.86