Finding the Third Proportional to 67,870.50 and 146,147.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67,870.50 : 146,147.25 = 146,147.25 : x
2. Step 2: Convert to fraction form
   67,870.50/146,147.25 = 146,147.25/x
3. Step 3: Cross multiply
   67,870.50x = 146,147.25 × 146,147.25
4. Step 4: Simplify right side
   67,870.50x = 21,359,018,682.56
5. Step 5: Solve for x
   x = 21,359,018,682.56/67,870.50
6. Step 6: Final answer
   x = 314,702.54