Finding the Third Proportional to 322,434 and 692,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   322,434 : 692,434.50 = 692,434.50 : x
2. Step 2: Convert to fraction form
   322,434/692,434.50 = 692,434.50/x
3. Step 3: Cross multiply
   322,434x = 692,434.50 × 692,434.50
4. Step 4: Simplify right side
   322,434x = 479,465,536,790.25
5. Step 5: Solve for x
   x = 479,465,536,790.25/322,434
6. Step 6: Final answer
   x = 1,487,019.16