Finding the Third Proportional to 146,047.50 and 319,128.75

Step by Step Solution

1. Step 1: Write the proportion equation
   146,047.50 : 319,128.75 = 319,128.75 : x
2. Step 2: Convert to fraction form
   146,047.50/319,128.75 = 319,128.75/x
3. Step 3: Cross multiply
   146,047.50x = 319,128.75 × 319,128.75
4. Step 4: Simplify right side
   146,047.50x = 101,843,159,076.56
5. Step 5: Solve for x
   x = 101,843,159,076.56/146,047.50
6. Step 6: Final answer
   x = 697,329.01