Finding the Third Proportional to 58,279.50 and 87,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,279.50 : 87,059.50 = 87,059.50 : x
2. Step 2: Convert to fraction form
   58,279.50/87,059.50 = 87,059.50/x
3. Step 3: Cross multiply
   58,279.50x = 87,059.50 × 87,059.50
4. Step 4: Simplify right side
   58,279.50x = 7,579,356,540.25
5. Step 5: Solve for x
   x = 7,579,356,540.25/58,279.50
6. Step 6: Final answer
   x = 130,051.85