Finding the Third Proportional to 38,174.63 and 57,678.75

Step by Step Solution

1. Step 1: Write the proportion equation
   38,174.63 : 57,678.75 = 57,678.75 : x
2. Step 2: Convert to fraction form
   38,174.63/57,678.75 = 57,678.75/x
3. Step 3: Cross multiply
   38,174.63x = 57,678.75 × 57,678.75
4. Step 4: Simplify right side
   38,174.63x = 3,326,838,201.56
5. Step 5: Solve for x
   x = 3,326,838,201.56/38,174.63
6. Step 6: Final answer
   x = 87,147.89