Finding the Third Proportional to 448,470 and 695,121.75

Step by Step Solution

1. Step 1: Write the proportion equation
   448,470 : 695,121.75 = 695,121.75 : x
2. Step 2: Convert to fraction form
   448,470/695,121.75 = 695,121.75/x
3. Step 3: Cross multiply
   448,470x = 695,121.75 × 695,121.75
4. Step 4: Simplify right side
   448,470x = 483,194,247,323.06
5. Step 5: Solve for x
   x = 483,194,247,323.06/448,470
6. Step 6: Final answer
   x = 1,077,428.25