Finding the Third Proportional to 371,453 and 814,109

Step by Step Solution

1. Step 1: Write the proportion equation
   371,453 : 814,109 = 814,109 : x
2. Step 2: Convert to fraction form
   371,453/814,109 = 814,109/x
3. Step 3: Cross multiply
   371,453x = 814,109 × 814,109
4. Step 4: Simplify right side
   371,453x = 662,773,463,881
5. Step 5: Solve for x
   x = 662,773,463,881/371,453
6. Step 6: Final answer
   x = 1,784,272.74