Finding the Third Proportional to 451,623 and 699,060

Step by Step Solution

1. Step 1: Write the proportion equation
   451,623 : 699,060 = 699,060 : x
2. Step 2: Convert to fraction form
   451,623/699,060 = 699,060/x
3. Step 3: Cross multiply
   451,623x = 699,060 × 699,060
4. Step 4: Simplify right side
   451,623x = 488,684,883,600
5. Step 5: Solve for x
   x = 488,684,883,600/451,623
6. Step 6: Final answer
   x = 1,082,063.76