Finding the Third Proportional to 70,724 and 152,518

Step by Step Solution

1. Step 1: Write the proportion equation
   70,724 : 152,518 = 152,518 : x
2. Step 2: Convert to fraction form
   70,724/152,518 = 152,518/x
3. Step 3: Cross multiply
   70,724x = 152,518 × 152,518
4. Step 4: Simplify right side
   70,724x = 23,261,740,324
5. Step 5: Solve for x
   x = 23,261,740,324/70,724
6. Step 6: Final answer
   x = 328,908.72