Finding the Third Proportional to 28,121 and 61,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,121 : 61,162.50 = 61,162.50 : x
2. Step 2: Convert to fraction form
   28,121/61,162.50 = 61,162.50/x
3. Step 3: Cross multiply
   28,121x = 61,162.50 × 61,162.50
4. Step 4: Simplify right side
   28,121x = 3,740,851,406.25
5. Step 5: Solve for x
   x = 3,740,851,406.25/28,121
6. Step 6: Final answer
   x = 133,026.97