Finding the Third Proportional to 448,484 and 695,144

Step by Step Solution

1. Step 1: Write the proportion equation
   448,484 : 695,144 = 695,144 : x
2. Step 2: Convert to fraction form
   448,484/695,144 = 695,144/x
3. Step 3: Cross multiply
   448,484x = 695,144 × 695,144
4. Step 4: Simplify right side
   448,484x = 483,225,180,736
5. Step 5: Solve for x
   x = 483,225,180,736/448,484
6. Step 6: Final answer
   x = 1,077,463.59