Finding the Third Proportional to 147,928.50 and 323,478

Step by Step Solution

1. Step 1: Write the proportion equation
   147,928.50 : 323,478 = 323,478 : x
2. Step 2: Convert to fraction form
   147,928.50/323,478 = 323,478/x
3. Step 3: Cross multiply
   147,928.50x = 323,478 × 323,478
4. Step 4: Simplify right side
   147,928.50x = 104,638,016,484
5. Step 5: Solve for x
   x = 104,638,016,484/147,928.50
6. Step 6: Final answer
   x = 707,355.35