Finding the Third Proportional to 447,634 and 694,144

Step by Step Solution

1. Step 1: Write the proportion equation
   447,634 : 694,144 = 694,144 : x
2. Step 2: Convert to fraction form
   447,634/694,144 = 694,144/x
3. Step 3: Cross multiply
   447,634x = 694,144 × 694,144
4. Step 4: Simplify right side
   447,634x = 481,835,892,736
5. Step 5: Solve for x
   x = 481,835,892,736/447,634
6. Step 6: Final answer
   x = 1,076,405.93