Finding the Third Proportional to 146,380.50 and 319,536

Step by Step Solution

1. Step 1: Write the proportion equation
   146,380.50 : 319,536 = 319,536 : x
2. Step 2: Convert to fraction form
   146,380.50/319,536 = 319,536/x
3. Step 3: Cross multiply
   146,380.50x = 319,536 × 319,536
4. Step 4: Simplify right side
   146,380.50x = 102,103,255,296
5. Step 5: Solve for x
   x = 102,103,255,296/146,380.50
6. Step 6: Final answer
   x = 697,519.51