Finding the Third Proportional to 67,980.94 and 147,261.38

Step by Step Solution

1. Step 1: Write the proportion equation
   67,980.94 : 147,261.38 = 147,261.38 : x
2. Step 2: Convert to fraction form
   67,980.94/147,261.38 = 147,261.38/x
3. Step 3: Cross multiply
   67,980.94x = 147,261.38 × 147,261.38
4. Step 4: Simplify right side
   67,980.94x = 21,685,912,566.89
5. Step 5: Solve for x
   x = 21,685,912,566.89/67,980.94
6. Step 6: Final answer
   x = 318,999.90