Finding the Third Proportional to 67,488 and 147,688

Step by Step Solution

1. Step 1: Write the proportion equation
   67,488 : 147,688 = 147,688 : x
2. Step 2: Convert to fraction form
   67,488/147,688 = 147,688/x
3. Step 3: Cross multiply
   67,488x = 147,688 × 147,688
4. Step 4: Simplify right side
   67,488x = 21,811,745,344
5. Step 5: Solve for x
   x = 21,811,745,344/67,488
6. Step 6: Final answer
   x = 323,194.42