Finding the Third Proportional to 286,537.50 and 622,826.72

Step by Step Solution

1. Step 1: Write the proportion equation
   286,537.50 : 622,826.72 = 622,826.72 : x
2. Step 2: Convert to fraction form
   286,537.50/622,826.72 = 622,826.72/x
3. Step 3: Cross multiply
   286,537.50x = 622,826.72 × 622,826.72
4. Step 4: Simplify right side
   286,537.50x = 387,913,121,588.89
5. Step 5: Solve for x
   x = 387,913,121,588.89/286,537.50
6. Step 6: Final answer
   x = 1,353,795.30