Finding the Third Proportional to 12,156,770 and 25,940,668

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156,770 : 25,940,668 = 25,940,668 : x
2. Step 2: Convert to fraction form
   12,156,770/25,940,668 = 25,940,668/x
3. Step 3: Cross multiply
   12,156,770x = 25,940,668 × 25,940,668
4. Step 4: Simplify right side
   12,156,770x = 672,918,256,286,224
5. Step 5: Solve for x
   x = 672,918,256,286,224/12,156,770
6. Step 6: Final answer
   x = 55,353,375.63