Finding the Third Proportional to 58,498.50 and 90,504

Step by Step Solution

1. Step 1: Write the proportion equation
   58,498.50 : 90,504 = 90,504 : x
2. Step 2: Convert to fraction form
   58,498.50/90,504 = 90,504/x
3. Step 3: Cross multiply
   58,498.50x = 90,504 × 90,504
4. Step 4: Simplify right side
   58,498.50x = 8,190,974,016
5. Step 5: Solve for x
   x = 8,190,974,016/58,498.50
6. Step 6: Final answer
   x = 140,020.24