Finding the Third Proportional to 78,840 and 113,338

Step by Step Solution

1. Step 1: Write the proportion equation
   78,840 : 113,338 = 113,338 : x
2. Step 2: Convert to fraction form
   78,840/113,338 = 113,338/x
3. Step 3: Cross multiply
   78,840x = 113,338 × 113,338
4. Step 4: Simplify right side
   78,840x = 12,845,502,244
5. Step 5: Solve for x
   x = 12,845,502,244/78,840
6. Step 6: Final answer
   x = 162,931.28