Finding the Third Proportional to 45,321.75 and 99,705.25

Step by Step Solution

1. Step 1: Write the proportion equation
   45,321.75 : 99,705.25 = 99,705.25 : x
2. Step 2: Convert to fraction form
   45,321.75/99,705.25 = 99,705.25/x
3. Step 3: Cross multiply
   45,321.75x = 99,705.25 × 99,705.25
4. Step 4: Simplify right side
   45,321.75x = 9,941,136,877.56
5. Step 5: Solve for x
   x = 9,941,136,877.56/45,321.75
6. Step 6: Final answer
   x = 219,345.83