Finding the Third Proportional to 78,472.50 and 161,076

Step by Step Solution

1. Step 1: Write the proportion equation
   78,472.50 : 161,076 = 161,076 : x
2. Step 2: Convert to fraction form
   78,472.50/161,076 = 161,076/x
3. Step 3: Cross multiply
   78,472.50x = 161,076 × 161,076
4. Step 4: Simplify right side
   78,472.50x = 25,945,477,776
5. Step 5: Solve for x
   x = 25,945,477,776/78,472.50
6. Step 6: Final answer
   x = 330,631.47