Finding the Third Proportional to 89,238 and 130,878

Step by Step Solution

1. Step 1: Write the proportion equation
   89,238 : 130,878 = 130,878 : x
2. Step 2: Convert to fraction form
   89,238/130,878 = 130,878/x
3. Step 3: Cross multiply
   89,238x = 130,878 × 130,878
4. Step 4: Simplify right side
   89,238x = 17,129,050,884
5. Step 5: Solve for x
   x = 17,129,050,884/89,238
6. Step 6: Final answer
   x = 191,947.95