Finding the Third Proportional to 59,079.38 and 90,809.06

Step by Step Solution

1. Step 1: Write the proportion equation
   59,079.38 : 90,809.06 = 90,809.06 : x
2. Step 2: Convert to fraction form
   59,079.38/90,809.06 = 90,809.06/x
3. Step 3: Cross multiply
   59,079.38x = 90,809.06 × 90,809.06
4. Step 4: Simplify right side
   59,079.38x = 8,246,285,832.13
5. Step 5: Solve for x
   x = 8,246,285,832.13/59,079.38
6. Step 6: Final answer
   x = 139,579.77