Finding the Third Proportional to 11,816,510 and 25,649,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,816,510 : 25,649,717.50 = 25,649,717.50 : x
2. Step 2: Convert to fraction form
   11,816,510/25,649,717.50 = 25,649,717.50/x
3. Step 3: Cross multiply
   11,816,510x = 25,649,717.50 × 25,649,717.50
4. Step 4: Simplify right side
   11,816,510x = 657,908,007,829,806.25
5. Step 5: Solve for x
   x = 657,908,007,829,806.25/11,816,510
6. Step 6: Final answer
   x = 55,677,015.28