Finding the Third Proportional to 14,975,128 and 21,399,806

Step by Step Solution

1. Step 1: Write the proportion equation
   14,975,128 : 21,399,806 = 21,399,806 : x
2. Step 2: Convert to fraction form
   14,975,128/21,399,806 = 21,399,806/x
3. Step 3: Cross multiply
   14,975,128x = 21,399,806 × 21,399,806
4. Step 4: Simplify right side
   14,975,128x = 457,951,696,837,636
5. Step 5: Solve for x
   x = 457,951,696,837,636/14,975,128
6. Step 6: Final answer
   x = 30,580,820.20