Finding the Third Proportional to 851,644 and 1,335,978

Step by Step Solution

1. Step 1: Write the proportion equation
   851,644 : 1,335,978 = 1,335,978 : x
2. Step 2: Convert to fraction form
   851,644/1,335,978 = 1,335,978/x
3. Step 3: Cross multiply
   851,644x = 1,335,978 × 1,335,978
4. Step 4: Simplify right side
   851,644x = 1,784,837,216,484
5. Step 5: Solve for x
   x = 1,784,837,216,484/851,644
6. Step 6: Final answer
   x = 2,095,755.05