Finding the Third Proportional to 30,807.84 and 65,169.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,807.84 : 65,169.56 = 65,169.56 : x
2. Step 2: Convert to fraction form
   30,807.84/65,169.56 = 65,169.56/x
3. Step 3: Cross multiply
   30,807.84x = 65,169.56 × 65,169.56
4. Step 4: Simplify right side
   30,807.84x = 4,247,071,876.44
5. Step 5: Solve for x
   x = 4,247,071,876.44/30,807.84
6. Step 6: Final answer
   x = 137,856.84