Finding the Third Proportional to 788,185 and 1,639,272

Step by Step Solution

1. Step 1: Write the proportion equation
   788,185 : 1,639,272 = 1,639,272 : x
2. Step 2: Convert to fraction form
   788,185/1,639,272 = 1,639,272/x
3. Step 3: Cross multiply
   788,185x = 1,639,272 × 1,639,272
4. Step 4: Simplify right side
   788,185x = 2,687,212,689,984
5. Step 5: Solve for x
   x = 2,687,212,689,984/788,185
6. Step 6: Final answer
   x = 3,409,367.97