Finding the Third Proportional to 288,101.91 and 622,364.72

Step by Step Solution

1. Step 1: Write the proportion equation
   288,101.91 : 622,364.72 = 622,364.72 : x
2. Step 2: Convert to fraction form
   288,101.91/622,364.72 = 622,364.72/x
3. Step 3: Cross multiply
   288,101.91x = 622,364.72 × 622,364.72
4. Step 4: Simplify right side
   288,101.91x = 387,337,843,144.77
5. Step 5: Solve for x
   x = 387,337,843,144.77/288,101.91
6. Step 6: Final answer
   x = 1,344,447.35