Finding the Third Proportional to 12,309,054 and 28,493,256

Step by Step Solution

1. Step 1: Write the proportion equation
   12,309,054 : 28,493,256 = 28,493,256 : x
2. Step 2: Convert to fraction form
   12,309,054/28,493,256 = 28,493,256/x
3. Step 3: Cross multiply
   12,309,054x = 28,493,256 × 28,493,256
4. Step 4: Simplify right side
   12,309,054x = 811,865,637,481,536
5. Step 5: Solve for x
   x = 811,865,637,481,536/12,309,054
6. Step 6: Final answer
   x = 65,956,785.75