Finding the Third Proportional to 42,664.50 and 63,999

Step by Step Solution

1. Step 1: Write the proportion equation
   42,664.50 : 63,999 = 63,999 : x
2. Step 2: Convert to fraction form
   42,664.50/63,999 = 63,999/x
3. Step 3: Cross multiply
   42,664.50x = 63,999 × 63,999
4. Step 4: Simplify right side
   42,664.50x = 4,095,872,001
5. Step 5: Solve for x
   x = 4,095,872,001/42,664.50
6. Step 6: Final answer
   x = 96,001.88