Finding the Third Proportional to 38,897.16 and 79,220.81

Step by Step Solution

1. Step 1: Write the proportion equation
   38,897.16 : 79,220.81 = 79,220.81 : x
2. Step 2: Convert to fraction form
   38,897.16/79,220.81 = 79,220.81/x
3. Step 3: Cross multiply
   38,897.16x = 79,220.81 × 79,220.81
4. Step 4: Simplify right side
   38,897.16x = 6,275,937,133.16
5. Step 5: Solve for x
   x = 6,275,937,133.16/38,897.16
6. Step 6: Final answer
   x = 161,346.94