Finding the Third Proportional to 67,981.22 and 145,800.56

Step by Step Solution

1. Step 1: Write the proportion equation
   67,981.22 : 145,800.56 = 145,800.56 : x
2. Step 2: Convert to fraction form
   67,981.22/145,800.56 = 145,800.56/x
3. Step 3: Cross multiply
   67,981.22x = 145,800.56 × 145,800.56
4. Step 4: Simplify right side
   67,981.22x = 21,257,804,025.32
5. Step 5: Solve for x
   x = 21,257,804,025.32/67,981.22
6. Step 6: Final answer
   x = 312,701.13