Finding the Third Proportional to 360,100.50 and 786,642

Step by Step Solution

1. Step 1: Write the proportion equation
   360,100.50 : 786,642 = 786,642 : x
2. Step 2: Convert to fraction form
   360,100.50/786,642 = 786,642/x
3. Step 3: Cross multiply
   360,100.50x = 786,642 × 786,642
4. Step 4: Simplify right side
   360,100.50x = 618,805,636,164
5. Step 5: Solve for x
   x = 618,805,636,164/360,100.50
6. Step 6: Final answer
   x = 1,718,424.82