Finding the Third Proportional to 207,910 and 456,416

Step by Step Solution

1. Step 1: Write the proportion equation
   207,910 : 456,416 = 456,416 : x
2. Step 2: Convert to fraction form
   207,910/456,416 = 456,416/x
3. Step 3: Cross multiply
   207,910x = 456,416 × 456,416
4. Step 4: Simplify right side
   207,910x = 208,315,565,056
5. Step 5: Solve for x
   x = 208,315,565,056/207,910
6. Step 6: Final answer
   x = 1,001,950.68