Finding the Third Proportional to 64,173.38 and 85,164.75

Step by Step Solution

1. Step 1: Write the proportion equation
   64,173.38 : 85,164.75 = 85,164.75 : x
2. Step 2: Convert to fraction form
   64,173.38/85,164.75 = 85,164.75/x
3. Step 3: Cross multiply
   64,173.38x = 85,164.75 × 85,164.75
4. Step 4: Simplify right side
   64,173.38x = 7,253,034,642.56
5. Step 5: Solve for x
   x = 7,253,034,642.56/64,173.38
6. Step 6: Final answer
   x = 113,022.49