Finding the Third Proportional to 28,218.38 and 45,380.25

Step by Step Solution

1. Step 1: Write the proportion equation
   28,218.38 : 45,380.25 = 45,380.25 : x
2. Step 2: Convert to fraction form
   28,218.38/45,380.25 = 45,380.25/x
3. Step 3: Cross multiply
   28,218.38x = 45,380.25 × 45,380.25
4. Step 4: Simplify right side
   28,218.38x = 2,059,367,090.06
5. Step 5: Solve for x
   x = 2,059,367,090.06/28,218.38
6. Step 6: Final answer
   x = 72,979.65