Finding the Third Proportional to 128,083,399.50 and 275,619,433.50

Step by Step Solution

1. Step 1: Write the proportion equation
   128,083,399.50 : 275,619,433.50 = 275,619,433.50 : x
2. Step 2: Convert to fraction form
   128,083,399.50/275,619,433.50 = 275,619,433.50/x
3. Step 3: Cross multiply
   128,083,399.50x = 275,619,433.50 × 275,619,433.50
4. Step 4: Simplify right side
   128,083,399.50x = 75,966,072,122,860,928
5. Step 5: Solve for x
   x = 75,966,072,122,860,928/128,083,399.50
6. Step 6: Final answer
   x = 593,098,500.04