Finding the Third Proportional to 146,745 and 321,619.50

Step by Step Solution

1. Step 1: Write the proportion equation
   146,745 : 321,619.50 = 321,619.50 : x
2. Step 2: Convert to fraction form
   146,745/321,619.50 = 321,619.50/x
3. Step 3: Cross multiply
   146,745x = 321,619.50 × 321,619.50
4. Step 4: Simplify right side
   146,745x = 103,439,102,780.25
5. Step 5: Solve for x
   x = 103,439,102,780.25/146,745
6. Step 6: Final answer
   x = 704,890.13