Finding the Third Proportional to 58,311 and 89,650.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,311 : 89,650.50 = 89,650.50 : x
2. Step 2: Convert to fraction form
   58,311/89,650.50 = 89,650.50/x
3. Step 3: Cross multiply
   58,311x = 89,650.50 × 89,650.50
4. Step 4: Simplify right side
   58,311x = 8,037,212,150.25
5. Step 5: Solve for x
   x = 8,037,212,150.25/58,311
6. Step 6: Final answer
   x = 137,833.55