Finding the Third Proportional to 58,756 and 87,000

Step by Step Solution

1. Step 1: Write the proportion equation
   58,756 : 87,000 = 87,000 : x
2. Step 2: Convert to fraction form
   58,756/87,000 = 87,000/x
3. Step 3: Cross multiply
   58,756x = 87,000 × 87,000
4. Step 4: Simplify right side
   58,756x = 7,569,000,000
5. Step 5: Solve for x
   x = 7,569,000,000/58,756
6. Step 6: Final answer
   x = 128,820.89