Finding the Third Proportional to 851,638 and 1,335,969

Step by Step Solution

1. Step 1: Write the proportion equation
   851,638 : 1,335,969 = 1,335,969 : x
2. Step 2: Convert to fraction form
   851,638/1,335,969 = 1,335,969/x
3. Step 3: Cross multiply
   851,638x = 1,335,969 × 1,335,969
4. Step 4: Simplify right side
   851,638x = 1,784,813,168,961
5. Step 5: Solve for x
   x = 1,784,813,168,961/851,638
6. Step 6: Final answer
   x = 2,095,741.58