Finding the Third Proportional to 19,187.51 and 28,675.90

Step by Step Solution

1. Step 1: Write the proportion equation
   19,187.51 : 28,675.90 = 28,675.90 : x
2. Step 2: Convert to fraction form
   19,187.51/28,675.90 = 28,675.90/x
3. Step 3: Cross multiply
   19,187.51x = 28,675.90 × 28,675.90
4. Step 4: Simplify right side
   19,187.51x = 822,307,151.20
5. Step 5: Solve for x
   x = 822,307,151.20/19,187.51
6. Step 6: Final answer
   x = 42,856.38