Finding the Third Proportional to 55,398 and 88,066

Step by Step Solution

1. Step 1: Write the proportion equation
   55,398 : 88,066 = 88,066 : x
2. Step 2: Convert to fraction form
   55,398/88,066 = 88,066/x
3. Step 3: Cross multiply
   55,398x = 88,066 × 88,066
4. Step 4: Simplify right side
   55,398x = 7,755,620,356
5. Step 5: Solve for x
   x = 7,755,620,356/55,398
6. Step 6: Final answer
   x = 139,998.20