Finding the Third Proportional to 28,242 and 61,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,242 : 61,402.50 = 61,402.50 : x
2. Step 2: Convert to fraction form
   28,242/61,402.50 = 61,402.50/x
3. Step 3: Cross multiply
   28,242x = 61,402.50 × 61,402.50
4. Step 4: Simplify right side
   28,242x = 3,770,267,006.25
5. Step 5: Solve for x
   x = 3,770,267,006.25/28,242
6. Step 6: Final answer
   x = 133,498.58