Finding the Third Proportional to 78,464.50 and 161,063

Step by Step Solution

1. Step 1: Write the proportion equation
   78,464.50 : 161,063 = 161,063 : x
2. Step 2: Convert to fraction form
   78,464.50/161,063 = 161,063/x
3. Step 3: Cross multiply
   78,464.50x = 161,063 × 161,063
4. Step 4: Simplify right side
   78,464.50x = 25,941,289,969
5. Step 5: Solve for x
   x = 25,941,289,969/78,464.50
6. Step 6: Final answer
   x = 330,611.80