Finding the Third Proportional to 70,730 and 152,530

Step by Step Solution

1. Step 1: Write the proportion equation
   70,730 : 152,530 = 152,530 : x
2. Step 2: Convert to fraction form
   70,730/152,530 = 152,530/x
3. Step 3: Cross multiply
   70,730x = 152,530 × 152,530
4. Step 4: Simplify right side
   70,730x = 23,265,400,900
5. Step 5: Solve for x
   x = 23,265,400,900/70,730
6. Step 6: Final answer
   x = 328,932.57