Finding the Third Proportional to 28,239 and 58,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,239 : 58,816.50 = 58,816.50 : x
2. Step 2: Convert to fraction form
   28,239/58,816.50 = 58,816.50/x
3. Step 3: Cross multiply
   28,239x = 58,816.50 × 58,816.50
4. Step 4: Simplify right side
   28,239x = 3,459,380,672.25
5. Step 5: Solve for x
   x = 3,459,380,672.25/28,239
6. Step 6: Final answer
   x = 122,503.65