Finding the Third Proportional to 11,819,870 and 25,881,730

Step by Step Solution

1. Step 1: Write the proportion equation
   11,819,870 : 25,881,730 = 25,881,730 : x
2. Step 2: Convert to fraction form
   11,819,870/25,881,730 = 25,881,730/x
3. Step 3: Cross multiply
   11,819,870x = 25,881,730 × 25,881,730
4. Step 4: Simplify right side
   11,819,870x = 669,863,947,792,900
5. Step 5: Solve for x
   x = 669,863,947,792,900/11,819,870
6. Step 6: Final answer
   x = 56,672,700.11