Finding the Third Proportional to 30,990.38 and 63,614.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,990.38 : 63,614.25 = 63,614.25 : x
2. Step 2: Convert to fraction form
   30,990.38/63,614.25 = 63,614.25/x
3. Step 3: Cross multiply
   30,990.38x = 63,614.25 × 63,614.25
4. Step 4: Simplify right side
   30,990.38x = 4,046,772,803.06
5. Step 5: Solve for x
   x = 4,046,772,803.06/30,990.38
6. Step 6: Final answer
   x = 130,581.60