Finding the Third Proportional to 776,871 and 1,049,620.50

Step by Step Solution

1. Step 1: Write the proportion equation
   776,871 : 1,049,620.50 = 1,049,620.50 : x
2. Step 2: Convert to fraction form
   776,871/1,049,620.50 = 1,049,620.50/x
3. Step 3: Cross multiply
   776,871x = 1,049,620.50 × 1,049,620.50
4. Step 4: Simplify right side
   776,871x = 1,101,703,194,020.25
5. Step 5: Solve for x
   x = 1,101,703,194,020.25/776,871
6. Step 6: Final answer
   x = 1,418,128.87