Finding the Third Proportional to 111,878.72 and 243,235.41

Step by Step Solution

1. Step 1: Write the proportion equation
   111,878.72 : 243,235.41 = 243,235.41 : x
2. Step 2: Convert to fraction form
   111,878.72/243,235.41 = 243,235.41/x
3. Step 3: Cross multiply
   111,878.72x = 243,235.41 × 243,235.41
4. Step 4: Simplify right side
   111,878.72x = 59,163,462,853.60
5. Step 5: Solve for x
   x = 59,163,462,853.60/111,878.72
6. Step 6: Final answer
   x = 528,817.84