Finding the Third Proportional to 326,217 and 476,737.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,217 : 476,737.50 = 476,737.50 : x
2. Step 2: Convert to fraction form
   326,217/476,737.50 = 476,737.50/x
3. Step 3: Cross multiply
   326,217x = 476,737.50 × 476,737.50
4. Step 4: Simplify right side
   326,217x = 227,278,643,906.25
5. Step 5: Solve for x
   x = 227,278,643,906.25/326,217
6. Step 6: Final answer
   x = 696,709.99