Finding the Third Proportional to 19,311 and 28,798

Step by Step Solution

1. Step 1: Write the proportion equation
   19,311 : 28,798 = 28,798 : x
2. Step 2: Convert to fraction form
   19,311/28,798 = 28,798/x
3. Step 3: Cross multiply
   19,311x = 28,798 × 28,798
4. Step 4: Simplify right side
   19,311x = 829,324,804
5. Step 5: Solve for x
   x = 829,324,804/19,311
6. Step 6: Final answer
   x = 42,945.72