Finding the Third Proportional to 11,817,538 and 25,705,624

Step by Step Solution

1. Step 1: Write the proportion equation
   11,817,538 : 25,705,624 = 25,705,624 : x
2. Step 2: Convert to fraction form
   11,817,538/25,705,624 = 25,705,624/x
3. Step 3: Cross multiply
   11,817,538x = 25,705,624 × 25,705,624
4. Step 4: Simplify right side
   11,817,538x = 660,779,105,229,376
5. Step 5: Solve for x
   x = 660,779,105,229,376/11,817,538
6. Step 6: Final answer
   x = 55,915,124.22