Finding the Third Proportional to 31,362,418.50 and 67,264,867.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,362,418.50 : 67,264,867.50 = 67,264,867.50 : x
2. Step 2: Convert to fraction form
   31,362,418.50/67,264,867.50 = 67,264,867.50/x
3. Step 3: Cross multiply
   31,362,418.50x = 67,264,867.50 × 67,264,867.50
4. Step 4: Simplify right side
   31,362,418.50x = 4,524,562,399,792,556
5. Step 5: Solve for x
   x = 4,524,562,399,792,556/31,362,418.50
6. Step 6: Final answer
   x = 144,267,011.80