Finding the Third Proportional to 458,224 and 699,168

Step by Step Solution

1. Step 1: Write the proportion equation
   458,224 : 699,168 = 699,168 : x
2. Step 2: Convert to fraction form
   458,224/699,168 = 699,168/x
3. Step 3: Cross multiply
   458,224x = 699,168 × 699,168
4. Step 4: Simplify right side
   458,224x = 488,835,892,224
5. Step 5: Solve for x
   x = 488,835,892,224/458,224
6. Step 6: Final answer
   x = 1,066,805.52