Finding the Third Proportional to 637,374 and 978,344

Step by Step Solution

1. Step 1: Write the proportion equation
   637,374 : 978,344 = 978,344 : x
2. Step 2: Convert to fraction form
   637,374/978,344 = 978,344/x
3. Step 3: Cross multiply
   637,374x = 978,344 × 978,344
4. Step 4: Simplify right side
   637,374x = 957,156,982,336
5. Step 5: Solve for x
   x = 957,156,982,336/637,374
6. Step 6: Final answer
   x = 1,501,719.53