Finding the Third Proportional to 844,185 and 1,209,280

Step by Step Solution

1. Step 1: Write the proportion equation
   844,185 : 1,209,280 = 1,209,280 : x
2. Step 2: Convert to fraction form
   844,185/1,209,280 = 1,209,280/x
3. Step 3: Cross multiply
   844,185x = 1,209,280 × 1,209,280
4. Step 4: Simplify right side
   844,185x = 1,462,358,118,400
5. Step 5: Solve for x
   x = 1,462,358,118,400/844,185
6. Step 6: Final answer
   x = 1,732,272.09