Finding the Third Proportional to 58,315 and 90,050

Step by Step Solution

1. Step 1: Write the proportion equation
   58,315 : 90,050 = 90,050 : x
2. Step 2: Convert to fraction form
   58,315/90,050 = 90,050/x
3. Step 3: Cross multiply
   58,315x = 90,050 × 90,050
4. Step 4: Simplify right side
   58,315x = 8,109,002,500
5. Step 5: Solve for x
   x = 8,109,002,500/58,315
6. Step 6: Final answer
   x = 139,055.17