Finding the Third Proportional to 148,085.09 and 288,789.05

Step by Step Solution

1. Step 1: Write the proportion equation
   148,085.09 : 288,789.05 = 288,789.05 : x
2. Step 2: Convert to fraction form
   148,085.09/288,789.05 = 288,789.05/x
3. Step 3: Cross multiply
   148,085.09x = 288,789.05 × 288,789.05
4. Step 4: Simplify right side
   148,085.09x = 83,399,113,594.97
5. Step 5: Solve for x
   x = 83,399,113,594.97/148,085.09
6. Step 6: Final answer
   x = 563,183.75