Finding the Third Proportional to 20,347.88 and 42,913.13

Step by Step Solution

1. Step 1: Write the proportion equation
   20,347.88 : 42,913.13 = 42,913.13 : x
2. Step 2: Convert to fraction form
   20,347.88/42,913.13 = 42,913.13/x
3. Step 3: Cross multiply
   20,347.88x = 42,913.13 × 42,913.13
4. Step 4: Simplify right side
   20,347.88x = 1,841,536,297.27
5. Step 5: Solve for x
   x = 1,841,536,297.27/20,347.88
6. Step 6: Final answer
   x = 90,502.63