Finding the Third Proportional to 12,322,690 and 27,478,756

Step by Step Solution

1. Step 1: Write the proportion equation
   12,322,690 : 27,478,756 = 27,478,756 : x
2. Step 2: Convert to fraction form
   12,322,690/27,478,756 = 27,478,756/x
3. Step 3: Cross multiply
   12,322,690x = 27,478,756 × 27,478,756
4. Step 4: Simplify right side
   12,322,690x = 755,082,031,307,536
5. Step 5: Solve for x
   x = 755,082,031,307,536/12,322,690
6. Step 6: Final answer
   x = 61,275,746.72