Finding the Third Proportional to 1,249,805 and 1,866,528

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249,805 : 1,866,528 = 1,866,528 : x
2. Step 2: Convert to fraction form
   1,249,805/1,866,528 = 1,866,528/x
3. Step 3: Cross multiply
   1,249,805x = 1,866,528 × 1,866,528
4. Step 4: Simplify right side
   1,249,805x = 3,483,926,774,784
5. Step 5: Solve for x
   x = 3,483,926,774,784/1,249,805
6. Step 6: Final answer
   x = 2,787,576.28