Finding the Third Proportional to 12,475.78 and 27,719.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,475.78 : 27,719.91 = 27,719.91 : x
2. Step 2: Convert to fraction form
   12,475.78/27,719.91 = 27,719.91/x
3. Step 3: Cross multiply
   12,475.78x = 27,719.91 × 27,719.91
4. Step 4: Simplify right side
   12,475.78x = 768,393,202.51
5. Step 5: Solve for x
   x = 768,393,202.51/12,475.78
6. Step 6: Final answer
   x = 61,590.79