Finding the Third Proportional to 191,048 and 287,052

Step by Step Solution

1. Step 1: Write the proportion equation
   191,048 : 287,052 = 287,052 : x
2. Step 2: Convert to fraction form
   191,048/287,052 = 287,052/x
3. Step 3: Cross multiply
   191,048x = 287,052 × 287,052
4. Step 4: Simplify right side
   191,048x = 82,398,850,704
5. Step 5: Solve for x
   x = 82,398,850,704/191,048
6. Step 6: Final answer
   x = 431,299.21