Finding the Third Proportional to 148,085.51 and 288,789.89

Step by Step Solution

1. Step 1: Write the proportion equation
   148,085.51 : 288,789.89 = 288,789.89 : x
2. Step 2: Convert to fraction form
   148,085.51/288,789.89 = 288,789.89/x
3. Step 3: Cross multiply
   148,085.51x = 288,789.89 × 288,789.89
4. Step 4: Simplify right side
   148,085.51x = 83,399,600,927.20
5. Step 5: Solve for x
   x = 83,399,600,927.20/148,085.51
6. Step 6: Final answer
   x = 563,185.43