Finding the Third Proportional to 1,205,316 and 1,636,960

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205,316 : 1,636,960 = 1,636,960 : x
2. Step 2: Convert to fraction form
   1,205,316/1,636,960 = 1,636,960/x
3. Step 3: Cross multiply
   1,205,316x = 1,636,960 × 1,636,960
4. Step 4: Simplify right side
   1,205,316x = 2,679,638,041,600
5. Step 5: Solve for x
   x = 2,679,638,041,600/1,205,316
6. Step 6: Final answer
   x = 2,223,183.00