Finding the Third Proportional to 12,663 and 30,520.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,663 : 30,520.13 = 30,520.13 : x
2. Step 2: Convert to fraction form
   12,663/30,520.13 = 30,520.13/x
3. Step 3: Cross multiply
   12,663x = 30,520.13 × 30,520.13
4. Step 4: Simplify right side
   12,663x = 931,478,030.02
5. Step 5: Solve for x
   x = 931,478,030.02/12,663
6. Step 6: Final answer
   x = 73,559.03