Finding the Third Proportional to 63,458 and 141,100

Step by Step Solution

1. Step 1: Write the proportion equation
   63,458 : 141,100 = 141,100 : x
2. Step 2: Convert to fraction form
   63,458/141,100 = 141,100/x
3. Step 3: Cross multiply
   63,458x = 141,100 × 141,100
4. Step 4: Simplify right side
   63,458x = 19,909,210,000
5. Step 5: Solve for x
   x = 19,909,210,000/63,458
6. Step 6: Final answer
   x = 313,738.38