Finding the Third Proportional to 775,726 and 1,200,453

Step by Step Solution

1. Step 1: Write the proportion equation
   775,726 : 1,200,453 = 1,200,453 : x
2. Step 2: Convert to fraction form
   775,726/1,200,453 = 1,200,453/x
3. Step 3: Cross multiply
   775,726x = 1,200,453 × 1,200,453
4. Step 4: Simplify right side
   775,726x = 1,441,087,405,209
5. Step 5: Solve for x
   x = 1,441,087,405,209/775,726
6. Step 6: Final answer
   x = 1,857,727.35