Finding the Third Proportional to 30,660 and 63,516

Step by Step Solution

1. Step 1: Write the proportion equation
   30,660 : 63,516 = 63,516 : x
2. Step 2: Convert to fraction form
   30,660/63,516 = 63,516/x
3. Step 3: Cross multiply
   30,660x = 63,516 × 63,516
4. Step 4: Simplify right side
   30,660x = 4,034,282,256
5. Step 5: Solve for x
   x = 4,034,282,256/30,660
6. Step 6: Final answer
   x = 131,581.29