Finding the Third Proportional to 983,308 and 2,139,663

Step by Step Solution

1. Step 1: Write the proportion equation
   983,308 : 2,139,663 = 2,139,663 : x
2. Step 2: Convert to fraction form
   983,308/2,139,663 = 2,139,663/x
3. Step 3: Cross multiply
   983,308x = 2,139,663 × 2,139,663
4. Step 4: Simplify right side
   983,308x = 4,578,157,753,569
5. Step 5: Solve for x
   x = 4,578,157,753,569/983,308
6. Step 6: Final answer
   x = 4,655,873.60