Finding the Third Proportional to 58,239 and 88,438.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,239 : 88,438.50 = 88,438.50 : x
2. Step 2: Convert to fraction form
   58,239/88,438.50 = 88,438.50/x
3. Step 3: Cross multiply
   58,239x = 88,438.50 × 88,438.50
4. Step 4: Simplify right side
   58,239x = 7,821,368,282.25
5. Step 5: Solve for x
   x = 7,821,368,282.25/58,239
6. Step 6: Final answer
   x = 134,297.78