Finding the Third Proportional to 983,311 and 2,139,667

Step by Step Solution

1. Step 1: Write the proportion equation
   983,311 : 2,139,667 = 2,139,667 : x
2. Step 2: Convert to fraction form
   983,311/2,139,667 = 2,139,667/x
3. Step 3: Cross multiply
   983,311x = 2,139,667 × 2,139,667
4. Step 4: Simplify right side
   983,311x = 4,578,174,870,889
5. Step 5: Solve for x
   x = 4,578,174,870,889/983,311
6. Step 6: Final answer
   x = 4,655,876.80