Finding the Third Proportional to 20,058 and 30,085.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,058 : 30,085.50 = 30,085.50 : x
2. Step 2: Convert to fraction form
   20,058/30,085.50 = 30,085.50/x
3. Step 3: Cross multiply
   20,058x = 30,085.50 × 30,085.50
4. Step 4: Simplify right side
   20,058x = 905,137,310.25
5. Step 5: Solve for x
   x = 905,137,310.25/20,058
6. Step 6: Final answer
   x = 45,126.00