Finding the Third Proportional to 70,700 and 152,470

Step by Step Solution

1. Step 1: Write the proportion equation
   70,700 : 152,470 = 152,470 : x
2. Step 2: Convert to fraction form
   70,700/152,470 = 152,470/x
3. Step 3: Cross multiply
   70,700x = 152,470 × 152,470
4. Step 4: Simplify right side
   70,700x = 23,247,100,900
5. Step 5: Solve for x
   x = 23,247,100,900/70,700
6. Step 6: Final answer
   x = 328,813.31