Finding the Third Proportional to 70,380 and 111,438

Step by Step Solution

1. Step 1: Write the proportion equation
   70,380 : 111,438 = 111,438 : x
2. Step 2: Convert to fraction form
   70,380/111,438 = 111,438/x
3. Step 3: Cross multiply
   70,380x = 111,438 × 111,438
4. Step 4: Simplify right side
   70,380x = 12,418,427,844
5. Step 5: Solve for x
   x = 12,418,427,844/70,380
6. Step 6: Final answer
   x = 176,448.25