Finding the Third Proportional to 41,572 and 86,100

Step by Step Solution

1. Step 1: Write the proportion equation
   41,572 : 86,100 = 86,100 : x
2. Step 2: Convert to fraction form
   41,572/86,100 = 86,100/x
3. Step 3: Cross multiply
   41,572x = 86,100 × 86,100
4. Step 4: Simplify right side
   41,572x = 7,413,210,000
5. Step 5: Solve for x
   x = 7,413,210,000/41,572
6. Step 6: Final answer
   x = 178,322.19