Finding the Third Proportional to 34,448 and 76,688

Step by Step Solution

1. Step 1: Write the proportion equation
   34,448 : 76,688 = 76,688 : x
2. Step 2: Convert to fraction form
   34,448/76,688 = 76,688/x
3. Step 3: Cross multiply
   34,448x = 76,688 × 76,688
4. Step 4: Simplify right side
   34,448x = 5,881,049,344
5. Step 5: Solve for x
   x = 5,881,049,344/34,448
6. Step 6: Final answer
   x = 170,722.52