Finding the Third Proportional to 58,780 and 88,700

Step by Step Solution

1. Step 1: Write the proportion equation
   58,780 : 88,700 = 88,700 : x
2. Step 2: Convert to fraction form
   58,780/88,700 = 88,700/x
3. Step 3: Cross multiply
   58,780x = 88,700 × 88,700
4. Step 4: Simplify right side
   58,780x = 7,867,690,000
5. Step 5: Solve for x
   x = 7,867,690,000/58,780
6. Step 6: Final answer
   x = 133,849.78