Finding the Third Proportional to 383,136 and 612,060

Step by Step Solution

1. Step 1: Write the proportion equation
   383,136 : 612,060 = 612,060 : x
2. Step 2: Convert to fraction form
   383,136/612,060 = 612,060/x
3. Step 3: Cross multiply
   383,136x = 612,060 × 612,060
4. Step 4: Simplify right side
   383,136x = 374,617,443,600
5. Step 5: Solve for x
   x = 374,617,443,600/383,136
6. Step 6: Final answer
   x = 977,766.23