Finding the Third Proportional to 61,012.50 and 111,899.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,012.50 : 111,899.50 = 111,899.50 : x
2. Step 2: Convert to fraction form
   61,012.50/111,899.50 = 111,899.50/x
3. Step 3: Cross multiply
   61,012.50x = 111,899.50 × 111,899.50
4. Step 4: Simplify right side
   61,012.50x = 12,521,498,100.25
5. Step 5: Solve for x
   x = 12,521,498,100.25/61,012.50
6. Step 6: Final answer
   x = 205,228.41