Finding the Third Proportional to 18,411 and 42,955.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,411 : 42,955.50 = 42,955.50 : x
2. Step 2: Convert to fraction form
   18,411/42,955.50 = 42,955.50/x
3. Step 3: Cross multiply
   18,411x = 42,955.50 × 42,955.50
4. Step 4: Simplify right side
   18,411x = 1,845,174,980.25
5. Step 5: Solve for x
   x = 1,845,174,980.25/18,411
6. Step 6: Final answer
   x = 100,221.33