Finding the Third Proportional to 811,836 and 1,761,978

Step by Step Solution

1. Step 1: Write the proportion equation
   811,836 : 1,761,978 = 1,761,978 : x
2. Step 2: Convert to fraction form
   811,836/1,761,978 = 1,761,978/x
3. Step 3: Cross multiply
   811,836x = 1,761,978 × 1,761,978
4. Step 4: Simplify right side
   811,836x = 3,104,566,472,484
5. Step 5: Solve for x
   x = 3,104,566,472,484/811,836
6. Step 6: Final answer
   x = 3,824,130.09