Finding the Third Proportional to 28,111.50 and 61,407

Step by Step Solution

1. Step 1: Write the proportion equation
   28,111.50 : 61,407 = 61,407 : x
2. Step 2: Convert to fraction form
   28,111.50/61,407 = 61,407/x
3. Step 3: Cross multiply
   28,111.50x = 61,407 × 61,407
4. Step 4: Simplify right side
   28,111.50x = 3,770,819,649
5. Step 5: Solve for x
   x = 3,770,819,649/28,111.50
6. Step 6: Final answer
   x = 134,137.97