Finding the Third Proportional to 146,578.50 and 219,001.50

Step by Step Solution

1. Step 1: Write the proportion equation
   146,578.50 : 219,001.50 = 219,001.50 : x
2. Step 2: Convert to fraction form
   146,578.50/219,001.50 = 219,001.50/x
3. Step 3: Cross multiply
   146,578.50x = 219,001.50 × 219,001.50
4. Step 4: Simplify right side
   146,578.50x = 47,961,657,002.25
5. Step 5: Solve for x
   x = 47,961,657,002.25/146,578.50
6. Step 6: Final answer
   x = 327,207.99