Finding the Third Proportional to 30,462.38 and 45,439.88

Step by Step Solution

1. Step 1: Write the proportion equation
   30,462.38 : 45,439.88 = 45,439.88 : x
2. Step 2: Convert to fraction form
   30,462.38/45,439.88 = 45,439.88/x
3. Step 3: Cross multiply
   30,462.38x = 45,439.88 × 45,439.88
4. Step 4: Simplify right side
   30,462.38x = 2,064,782,240.02
5. Step 5: Solve for x
   x = 2,064,782,240.02/30,462.38
6. Step 6: Final answer
   x = 67,781.39