Finding the Third Proportional to 293,409 and 622,800.56

Step by Step Solution

1. Step 1: Write the proportion equation
   293,409 : 622,800.56 = 622,800.56 : x
2. Step 2: Convert to fraction form
   293,409/622,800.56 = 622,800.56/x
3. Step 3: Cross multiply
   293,409x = 622,800.56 × 622,800.56
4. Step 4: Simplify right side
   293,409x = 387,880,540,650.32
5. Step 5: Solve for x
   x = 387,880,540,650.32/293,409
6. Step 6: Final answer
   x = 1,321,979.01