Finding the Third Proportional to 45,378.75 and 99,805.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,378.75 : 99,805.50 = 99,805.50 : x
2. Step 2: Convert to fraction form
   45,378.75/99,805.50 = 99,805.50/x
3. Step 3: Cross multiply
   45,378.75x = 99,805.50 × 99,805.50
4. Step 4: Simplify right side
   45,378.75x = 9,961,137,830.25
5. Step 5: Solve for x
   x = 9,961,137,830.25/45,378.75
6. Step 6: Final answer
   x = 219,511.07