Finding the Third Proportional to 42,951 and 87,115.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,951 : 87,115.50 = 87,115.50 : x
2. Step 2: Convert to fraction form
   42,951/87,115.50 = 87,115.50/x
3. Step 3: Cross multiply
   42,951x = 87,115.50 × 87,115.50
4. Step 4: Simplify right side
   42,951x = 7,589,110,340.25
5. Step 5: Solve for x
   x = 7,589,110,340.25/42,951
6. Step 6: Final answer
   x = 176,692.29