Finding the Third Proportional to 61,519.50 and 99,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,519.50 : 99,913.50 = 99,913.50 : x
2. Step 2: Convert to fraction form
   61,519.50/99,913.50 = 99,913.50/x
3. Step 3: Cross multiply
   61,519.50x = 99,913.50 × 99,913.50
4. Step 4: Simplify right side
   61,519.50x = 9,982,707,482.25
5. Step 5: Solve for x
   x = 9,982,707,482.25/61,519.50
6. Step 6: Final answer
   x = 162,269.00