Finding the Third Proportional to 74,383,280 and 173,697,147

Step by Step Solution

1. Step 1: Write the proportion equation
   74,383,280 : 173,697,147 = 173,697,147 : x
2. Step 2: Convert to fraction form
   74,383,280/173,697,147 = 173,697,147/x
3. Step 3: Cross multiply
   74,383,280x = 173,697,147 × 173,697,147
4. Step 4: Simplify right side
   74,383,280x = 30,170,698,875,939,608
5. Step 5: Solve for x
   x = 30,170,698,875,939,608/74,383,280
6. Step 6: Final answer
   x = 405,611,299.69