Finding the Third Proportional to 19,251 and 42,178.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,251 : 42,178.50 = 42,178.50 : x
2. Step 2: Convert to fraction form
   19,251/42,178.50 = 42,178.50/x
3. Step 3: Cross multiply
   19,251x = 42,178.50 × 42,178.50
4. Step 4: Simplify right side
   19,251x = 1,779,025,862.25
5. Step 5: Solve for x
   x = 1,779,025,862.25/19,251
6. Step 6: Final answer
   x = 92,412.13