Finding the Third Proportional to 93,451 and 139,789

Step by Step Solution

1. Step 1: Write the proportion equation
   93,451 : 139,789 = 139,789 : x
2. Step 2: Convert to fraction form
   93,451/139,789 = 139,789/x
3. Step 3: Cross multiply
   93,451x = 139,789 × 139,789
4. Step 4: Simplify right side
   93,451x = 19,540,964,521
5. Step 5: Solve for x
   x = 19,540,964,521/93,451
6. Step 6: Final answer
   x = 209,103.86