Finding the Third Proportional to 35,559 and 72,140.63

Step by Step Solution

1. Step 1: Write the proportion equation
   35,559 : 72,140.63 = 72,140.63 : x
2. Step 2: Convert to fraction form
   35,559/72,140.63 = 72,140.63/x
3. Step 3: Cross multiply
   35,559x = 72,140.63 × 72,140.63
4. Step 4: Simplify right side
   35,559x = 5,204,269,775.39
5. Step 5: Solve for x
   x = 5,204,269,775.39/35,559
6. Step 6: Final answer
   x = 146,355.91