Finding the Third Proportional to 326,913.50 and 705,434

Step by Step Solution

1. Step 1: Write the proportion equation
   326,913.50 : 705,434 = 705,434 : x
2. Step 2: Convert to fraction form
   326,913.50/705,434 = 705,434/x
3. Step 3: Cross multiply
   326,913.50x = 705,434 × 705,434
4. Step 4: Simplify right side
   326,913.50x = 497,637,128,356
5. Step 5: Solve for x
   x = 497,637,128,356/326,913.50
6. Step 6: Final answer
   x = 1,522,228.75