Finding the Third Proportional to 70,890 and 153,516

Step by Step Solution

1. Step 1: Write the proportion equation
   70,890 : 153,516 = 153,516 : x
2. Step 2: Convert to fraction form
   70,890/153,516 = 153,516/x
3. Step 3: Cross multiply
   70,890x = 153,516 × 153,516
4. Step 4: Simplify right side
   70,890x = 23,567,162,256
5. Step 5: Solve for x
   x = 23,567,162,256/70,890
6. Step 6: Final answer
   x = 332,446.92