Finding the Third Proportional to 12,156,756 and 25,940,640

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156,756 : 25,940,640 = 25,940,640 : x
2. Step 2: Convert to fraction form
   12,156,756/25,940,640 = 25,940,640/x
3. Step 3: Cross multiply
   12,156,756x = 25,940,640 × 25,940,640
4. Step 4: Simplify right side
   12,156,756x = 672,916,803,609,600
5. Step 5: Solve for x
   x = 672,916,803,609,600/12,156,756
6. Step 6: Final answer
   x = 55,353,319.88