Finding the Third Proportional to 58,171.50 and 78,873.75

Step by Step Solution

1. Step 1: Write the proportion equation
   58,171.50 : 78,873.75 = 78,873.75 : x
2. Step 2: Convert to fraction form
   58,171.50/78,873.75 = 78,873.75/x
3. Step 3: Cross multiply
   58,171.50x = 78,873.75 × 78,873.75
4. Step 4: Simplify right side
   58,171.50x = 6,221,068,439.06
5. Step 5: Solve for x
   x = 6,221,068,439.06/58,171.50
6. Step 6: Final answer
   x = 106,943.58