Finding the Third Proportional to 787,810 and 1,147,270

Step by Step Solution

1. Step 1: Write the proportion equation
   787,810 : 1,147,270 = 1,147,270 : x
2. Step 2: Convert to fraction form
   787,810/1,147,270 = 1,147,270/x
3. Step 3: Cross multiply
   787,810x = 1,147,270 × 1,147,270
4. Step 4: Simplify right side
   787,810x = 1,316,228,452,900
5. Step 5: Solve for x
   x = 1,316,228,452,900/787,810
6. Step 6: Final answer
   x = 1,670,743.52