Finding the Third Proportional to 42,639.75 and 92,065.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,639.75 : 92,065.50 = 92,065.50 : x
2. Step 2: Convert to fraction form
   42,639.75/92,065.50 = 92,065.50/x
3. Step 3: Cross multiply
   42,639.75x = 92,065.50 × 92,065.50
4. Step 4: Simplify right side
   42,639.75x = 8,476,056,290.25
5. Step 5: Solve for x
   x = 8,476,056,290.25/42,639.75
6. Step 6: Final answer
   x = 198,782.97