Finding the Third Proportional to 455,592 and 697,180

Step by Step Solution

1. Step 1: Write the proportion equation
   455,592 : 697,180 = 697,180 : x
2. Step 2: Convert to fraction form
   455,592/697,180 = 697,180/x
3. Step 3: Cross multiply
   455,592x = 697,180 × 697,180
4. Step 4: Simplify right side
   455,592x = 486,059,952,400
5. Step 5: Solve for x
   x = 486,059,952,400/455,592
6. Step 6: Final answer
   x = 1,066,875.52