Finding the Third Proportional to 712,354 and 1,109,379

Step by Step Solution

1. Step 1: Write the proportion equation
   712,354 : 1,109,379 = 1,109,379 : x
2. Step 2: Convert to fraction form
   712,354/1,109,379 = 1,109,379/x
3. Step 3: Cross multiply
   712,354x = 1,109,379 × 1,109,379
4. Step 4: Simplify right side
   712,354x = 1,230,721,765,641
5. Step 5: Solve for x
   x = 1,230,721,765,641/712,354
6. Step 6: Final answer
   x = 1,727,682.82