Finding the Third Proportional to 38,896.45 and 79,219.69

Step by Step Solution

1. Step 1: Write the proportion equation
   38,896.45 : 79,219.69 = 79,219.69 : x
2. Step 2: Convert to fraction form
   38,896.45/79,219.69 = 79,219.69/x
3. Step 3: Cross multiply
   38,896.45x = 79,219.69 × 79,219.69
4. Step 4: Simplify right side
   38,896.45x = 6,275,758,887.60
5. Step 5: Solve for x
   x = 6,275,758,887.60/38,896.45
6. Step 6: Final answer
   x = 161,345.27