Finding the Third Proportional to 12,996,991.50 and 28,161,256

Step by Step Solution

1. Step 1: Write the proportion equation
   12,996,991.50 : 28,161,256 = 28,161,256 : x
2. Step 2: Convert to fraction form
   12,996,991.50/28,161,256 = 28,161,256/x
3. Step 3: Cross multiply
   12,996,991.50x = 28,161,256 × 28,161,256
4. Step 4: Simplify right side
   12,996,991.50x = 793,056,339,497,536
5. Step 5: Solve for x
   x = 793,056,339,497,536/12,996,991.50
6. Step 6: Final answer
   x = 61,018,454.89