Finding the Third Proportional to 207,904 and 493,310

Step by Step Solution

1. Step 1: Write the proportion equation
   207,904 : 493,310 = 493,310 : x
2. Step 2: Convert to fraction form
   207,904/493,310 = 493,310/x
3. Step 3: Cross multiply
   207,904x = 493,310 × 493,310
4. Step 4: Simplify right side
   207,904x = 243,354,756,100
5. Step 5: Solve for x
   x = 243,354,756,100/207,904
6. Step 6: Final answer
   x = 1,170,515.03