Finding the Third Proportional to 70,148.50 and 153,440

Step by Step Solution

1. Step 1: Write the proportion equation
   70,148.50 : 153,440 = 153,440 : x
2. Step 2: Convert to fraction form
   70,148.50/153,440 = 153,440/x
3. Step 3: Cross multiply
   70,148.50x = 153,440 × 153,440
4. Step 4: Simplify right side
   70,148.50x = 23,543,833,600
5. Step 5: Solve for x
   x = 23,543,833,600/70,148.50
6. Step 6: Final answer
   x = 335,628.47