Finding the Third Proportional to 30,577.61 and 45,723.97

Step by Step Solution

1. Step 1: Write the proportion equation
   30,577.61 : 45,723.97 = 45,723.97 : x
2. Step 2: Convert to fraction form
   30,577.61/45,723.97 = 45,723.97/x
3. Step 3: Cross multiply
   30,577.61x = 45,723.97 × 45,723.97
4. Step 4: Simplify right side
   30,577.61x = 2,090,681,675.47
5. Step 5: Solve for x
   x = 2,090,681,675.47/30,577.61
6. Step 6: Final answer
   x = 68,372.97