Finding the Third Proportional to 983,312 and 2,139,670

Step by Step Solution

1. Step 1: Write the proportion equation
   983,312 : 2,139,670 = 2,139,670 : x
2. Step 2: Convert to fraction form
   983,312/2,139,670 = 2,139,670/x
3. Step 3: Cross multiply
   983,312x = 2,139,670 × 2,139,670
4. Step 4: Simplify right side
   983,312x = 4,578,187,708,900
5. Step 5: Solve for x
   x = 4,578,187,708,900/983,312
6. Step 6: Final answer
   x = 4,655,885.12