Finding the Third Proportional to 90,139.22 and 192,345.33

Step by Step Solution

1. Step 1: Write the proportion equation
   90,139.22 : 192,345.33 = 192,345.33 : x
2. Step 2: Convert to fraction form
   90,139.22/192,345.33 = 192,345.33/x
3. Step 3: Cross multiply
   90,139.22x = 192,345.33 × 192,345.33
4. Step 4: Simplify right side
   90,139.22x = 36,996,725,251.51
5. Step 5: Solve for x
   x = 36,996,725,251.51/90,139.22
6. Step 6: Final answer
   x = 410,439.83