Finding the Third Proportional to 58,369.50 and 86,703.75

Step by Step Solution

1. Step 1: Write the proportion equation
   58,369.50 : 86,703.75 = 86,703.75 : x
2. Step 2: Convert to fraction form
   58,369.50/86,703.75 = 86,703.75/x
3. Step 3: Cross multiply
   58,369.50x = 86,703.75 × 86,703.75
4. Step 4: Simplify right side
   58,369.50x = 7,517,540,264.06
5. Step 5: Solve for x
   x = 7,517,540,264.06/58,369.50
6. Step 6: Final answer
   x = 128,792.27