Finding the Third Proportional to 27,488.25 and 42,874.88

Step by Step Solution

1. Step 1: Write the proportion equation
   27,488.25 : 42,874.88 = 42,874.88 : x
2. Step 2: Convert to fraction form
   27,488.25/42,874.88 = 42,874.88/x
3. Step 3: Cross multiply
   27,488.25x = 42,874.88 × 42,874.88
4. Step 4: Simplify right side
   27,488.25x = 1,838,254,906.27
5. Step 5: Solve for x
   x = 1,838,254,906.27/27,488.25
6. Step 6: Final answer
   x = 66,874.21