Finding the Third Proportional to 67,140 and 148,252.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,140 : 148,252.50 = 148,252.50 : x
2. Step 2: Convert to fraction form
   67,140/148,252.50 = 148,252.50/x
3. Step 3: Cross multiply
   67,140x = 148,252.50 × 148,252.50
4. Step 4: Simplify right side
   67,140x = 21,978,803,756.25
5. Step 5: Solve for x
   x = 21,978,803,756.25/67,140
6. Step 6: Final answer
   x = 327,357.82