Finding the Third Proportional to 343,885 and 747,061

Step by Step Solution

1. Step 1: Write the proportion equation
   343,885 : 747,061 = 747,061 : x
2. Step 2: Convert to fraction form
   343,885/747,061 = 747,061/x
3. Step 3: Cross multiply
   343,885x = 747,061 × 747,061
4. Step 4: Simplify right side
   343,885x = 558,100,137,721
5. Step 5: Solve for x
   x = 558,100,137,721/343,885
6. Step 6: Final answer
   x = 1,622,926.67