Finding the Third Proportional to 43,218 and 63,173.25

Step by Step Solution

1. Step 1: Write the proportion equation
   43,218 : 63,173.25 = 63,173.25 : x
2. Step 2: Convert to fraction form
   43,218/63,173.25 = 63,173.25/x
3. Step 3: Cross multiply
   43,218x = 63,173.25 × 63,173.25
4. Step 4: Simplify right side
   43,218x = 3,990,859,515.56
5. Step 5: Solve for x
   x = 3,990,859,515.56/43,218
6. Step 6: Final answer
   x = 92,342.53