Finding the Third Proportional to 38,773.69 and 79,972.31

Step by Step Solution

1. Step 1: Write the proportion equation
   38,773.69 : 79,972.31 = 79,972.31 : x
2. Step 2: Convert to fraction form
   38,773.69/79,972.31 = 79,972.31/x
3. Step 3: Cross multiply
   38,773.69x = 79,972.31 × 79,972.31
4. Step 4: Simplify right side
   38,773.69x = 6,395,570,766.60
5. Step 5: Solve for x
   x = 6,395,570,766.60/38,773.69
6. Step 6: Final answer
   x = 164,946.16