Finding the Third Proportional to 73,878.19 and 111,364.31

Step by Step Solution

1. Step 1: Write the proportion equation
   73,878.19 : 111,364.31 = 111,364.31 : x
2. Step 2: Convert to fraction form
   73,878.19/111,364.31 = 111,364.31/x
3. Step 3: Cross multiply
   73,878.19x = 111,364.31 × 111,364.31
4. Step 4: Simplify right side
   73,878.19x = 12,402,010,098.60
5. Step 5: Solve for x
   x = 12,402,010,098.60/73,878.19
6. Step 6: Final answer
   x = 167,871.07