Finding the Third Proportional to 767,140 and 1,200,798

Step by Step Solution

1. Step 1: Write the proportion equation
   767,140 : 1,200,798 = 1,200,798 : x
2. Step 2: Convert to fraction form
   767,140/1,200,798 = 1,200,798/x
3. Step 3: Cross multiply
   767,140x = 1,200,798 × 1,200,798
4. Step 4: Simplify right side
   767,140x = 1,441,915,836,804
5. Step 5: Solve for x
   x = 1,441,915,836,804/767,140
6. Step 6: Final answer
   x = 1,879,599.34