Finding the Third Proportional to 342,008 and 748,384

Step by Step Solution

1. Step 1: Write the proportion equation
   342,008 : 748,384 = 748,384 : x
2. Step 2: Convert to fraction form
   342,008/748,384 = 748,384/x
3. Step 3: Cross multiply
   342,008x = 748,384 × 748,384
4. Step 4: Simplify right side
   342,008x = 560,078,611,456
5. Step 5: Solve for x
   x = 560,078,611,456/342,008
6. Step 6: Final answer
   x = 1,637,618.45