Finding the Third Proportional to 20,579.06 and 42,130.13

Step by Step Solution

1. Step 1: Write the proportion equation
   20,579.06 : 42,130.13 = 42,130.13 : x
2. Step 2: Convert to fraction form
   20,579.06/42,130.13 = 42,130.13/x
3. Step 3: Cross multiply
   20,579.06x = 42,130.13 × 42,130.13
4. Step 4: Simplify right side
   20,579.06x = 1,774,947,432.52
5. Step 5: Solve for x
   x = 1,774,947,432.52/20,579.06
6. Step 6: Final answer
   x = 86,250.16