Finding the Third Proportional to 191,122 and 287,162

Step by Step Solution

1. Step 1: Write the proportion equation
   191,122 : 287,162 = 287,162 : x
2. Step 2: Convert to fraction form
   191,122/287,162 = 287,162/x
3. Step 3: Cross multiply
   191,122x = 287,162 × 287,162
4. Step 4: Simplify right side
   191,122x = 82,462,014,244
5. Step 5: Solve for x
   x = 82,462,014,244/191,122
6. Step 6: Final answer
   x = 431,462.70