Finding the Third Proportional to 67,217 and 147,538

Step by Step Solution

1. Step 1: Write the proportion equation
   67,217 : 147,538 = 147,538 : x
2. Step 2: Convert to fraction form
   67,217/147,538 = 147,538/x
3. Step 3: Cross multiply
   67,217x = 147,538 × 147,538
4. Step 4: Simplify right side
   67,217x = 21,767,461,444
5. Step 5: Solve for x
   x = 21,767,461,444/67,217
6. Step 6: Final answer
   x = 323,838.63