Finding the Third Proportional to 191,613 and 415,826

Step by Step Solution

1. Step 1: Write the proportion equation
   191,613 : 415,826 = 415,826 : x
2. Step 2: Convert to fraction form
   191,613/415,826 = 415,826/x
3. Step 3: Cross multiply
   191,613x = 415,826 × 415,826
4. Step 4: Simplify right side
   191,613x = 172,911,262,276
5. Step 5: Solve for x
   x = 172,911,262,276/191,613
6. Step 6: Final answer
   x = 902,398.39