Finding the Third Proportional to 322,690.50 and 709,074

Step by Step Solution

1. Step 1: Write the proportion equation
   322,690.50 : 709,074 = 709,074 : x
2. Step 2: Convert to fraction form
   322,690.50/709,074 = 709,074/x
3. Step 3: Cross multiply
   322,690.50x = 709,074 × 709,074
4. Step 4: Simplify right side
   322,690.50x = 502,785,937,476
5. Step 5: Solve for x
   x = 502,785,937,476/322,690.50
6. Step 6: Final answer
   x = 1,558,105.79