Finding the Third Proportional to 11,817,528 and 25,705,605

Step by Step Solution

1. Step 1: Write the proportion equation
   11,817,528 : 25,705,605 = 25,705,605 : x
2. Step 2: Convert to fraction form
   11,817,528/25,705,605 = 25,705,605/x
3. Step 3: Cross multiply
   11,817,528x = 25,705,605 × 25,705,605
4. Step 4: Simplify right side
   11,817,528x = 660,778,128,416,025
5. Step 5: Solve for x
   x = 660,778,128,416,025/11,817,528
6. Step 6: Final answer
   x = 55,915,088.88