Finding the Third Proportional to 70,140.50 and 149,042

Step by Step Solution

1. Step 1: Write the proportion equation
   70,140.50 : 149,042 = 149,042 : x
2. Step 2: Convert to fraction form
   70,140.50/149,042 = 149,042/x
3. Step 3: Cross multiply
   70,140.50x = 149,042 × 149,042
4. Step 4: Simplify right side
   70,140.50x = 22,213,517,764
5. Step 5: Solve for x
   x = 22,213,517,764/70,140.50
6. Step 6: Final answer
   x = 316,700.31