Finding the Third Proportional to 622,431 and 957,156.75

Step by Step Solution

1. Step 1: Write the proportion equation
   622,431 : 957,156.75 = 957,156.75 : x
2. Step 2: Convert to fraction form
   622,431/957,156.75 = 957,156.75/x
3. Step 3: Cross multiply
   622,431x = 957,156.75 × 957,156.75
4. Step 4: Simplify right side
   622,431x = 916,149,044,070.56
5. Step 5: Solve for x
   x = 916,149,044,070.56/622,431
6. Step 6: Final answer
   x = 1,471,888.52