Finding the Third Proportional to 58,498.50 and 89,860

Step by Step Solution

1. Step 1: Write the proportion equation
   58,498.50 : 89,860 = 89,860 : x
2. Step 2: Convert to fraction form
   58,498.50/89,860 = 89,860/x
3. Step 3: Cross multiply
   58,498.50x = 89,860 × 89,860
4. Step 4: Simplify right side
   58,498.50x = 8,074,819,600
5. Step 5: Solve for x
   x = 8,074,819,600/58,498.50
6. Step 6: Final answer
   x = 138,034.64