Finding the Third Proportional to 349,722 and 749,061

Step by Step Solution

1. Step 1: Write the proportion equation
   349,722 : 749,061 = 749,061 : x
2. Step 2: Convert to fraction form
   349,722/749,061 = 749,061/x
3. Step 3: Cross multiply
   349,722x = 749,061 × 749,061
4. Step 4: Simplify right side
   349,722x = 561,092,381,721
5. Step 5: Solve for x
   x = 561,092,381,721/349,722
6. Step 6: Final answer
   x = 1,604,395.44