Finding the Third Proportional to 324,788,780.50 and 766,443,390

Step by Step Solution

1. Step 1: Write the proportion equation
   324,788,780.50 : 766,443,390 = 766,443,390 : x
2. Step 2: Convert to fraction form
   324,788,780.50/766,443,390 = 766,443,390/x
3. Step 3: Cross multiply
   324,788,780.50x = 766,443,390 × 766,443,390
4. Step 4: Simplify right side
   324,788,780.50x = 587,435,470,074,692,096
5. Step 5: Solve for x
   x = 587,435,470,074,692,096/324,788,780.50
6. Step 6: Final answer
   x = 1,808,669,219.33