Finding the Third Proportional to 11,817,544 and 25,705,629.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,817,544 : 25,705,629.50 = 25,705,629.50 : x
2. Step 2: Convert to fraction form
   11,817,544/25,705,629.50 = 25,705,629.50/x
3. Step 3: Cross multiply
   11,817,544x = 25,705,629.50 × 25,705,629.50
4. Step 4: Simplify right side
   11,817,544x = 660,779,387,991,270.25
5. Step 5: Solve for x
   x = 660,779,387,991,270.25/11,817,544
6. Step 6: Final answer
   x = 55,915,119.76