Finding the Third Proportional to 11,817,538.50 and 25,705,626

Step by Step Solution

1. Step 1: Write the proportion equation
   11,817,538.50 : 25,705,626 = 25,705,626 : x
2. Step 2: Convert to fraction form
   11,817,538.50/25,705,626 = 25,705,626/x
3. Step 3: Cross multiply
   11,817,538.50x = 25,705,626 × 25,705,626
4. Step 4: Simplify right side
   11,817,538.50x = 660,779,208,051,876
5. Step 5: Solve for x
   x = 660,779,208,051,876/11,817,538.50
6. Step 6: Final answer
   x = 55,915,130.55