Finding the Third Proportional to 58,517 and 87,647.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,517 : 87,647.50 = 87,647.50 : x
2. Step 2: Convert to fraction form
   58,517/87,647.50 = 87,647.50/x
3. Step 3: Cross multiply
   58,517x = 87,647.50 × 87,647.50
4. Step 4: Simplify right side
   58,517x = 7,682,084,256.25
5. Step 5: Solve for x
   x = 7,682,084,256.25/58,517
6. Step 6: Final answer
   x = 131,279.53