Finding the Third Proportional to 12,400.59 and 27,129.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,400.59 : 27,129.94 = 27,129.94 : x
2. Step 2: Convert to fraction form
   12,400.59/27,129.94 = 27,129.94/x
3. Step 3: Cross multiply
   12,400.59x = 27,129.94 × 27,129.94
4. Step 4: Simplify right side
   12,400.59x = 736,033,508.75
5. Step 5: Solve for x
   x = 736,033,508.75/12,400.59
6. Step 6: Final answer
   x = 59,354.70