Finding the Third Proportional to 20,302.88 and 42,827.06

Step by Step Solution

1. Step 1: Write the proportion equation
   20,302.88 : 42,827.06 = 42,827.06 : x
2. Step 2: Convert to fraction form
   20,302.88/42,827.06 = 42,827.06/x
3. Step 3: Cross multiply
   20,302.88x = 42,827.06 × 42,827.06
4. Step 4: Simplify right side
   20,302.88x = 1,834,157,282.38
5. Step 5: Solve for x
   x = 1,834,157,282.38/20,302.88
6. Step 6: Final answer
   x = 90,339.78