Finding the Third Proportional to 402,451.50 and 874,791.50

Step by Step Solution

1. Step 1: Write the proportion equation
   402,451.50 : 874,791.50 = 874,791.50 : x
2. Step 2: Convert to fraction form
   402,451.50/874,791.50 = 874,791.50/x
3. Step 3: Cross multiply
   402,451.50x = 874,791.50 × 874,791.50
4. Step 4: Simplify right side
   402,451.50x = 765,260,168,472.25
5. Step 5: Solve for x
   x = 765,260,168,472.25/402,451.50
6. Step 6: Final answer
   x = 1,901,496.62