Finding the Third Proportional to 78,964 and 161,100

Step by Step Solution

1. Step 1: Write the proportion equation
   78,964 : 161,100 = 161,100 : x
2. Step 2: Convert to fraction form
   78,964/161,100 = 161,100/x
3. Step 3: Cross multiply
   78,964x = 161,100 × 161,100
4. Step 4: Simplify right side
   78,964x = 25,953,210,000
5. Step 5: Solve for x
   x = 25,953,210,000/78,964
6. Step 6: Final answer
   x = 328,671.42