Finding the Third Proportional to 28,245 and 61,139

Step by Step Solution

1. Step 1: Write the proportion equation
   28,245 : 61,139 = 61,139 : x
2. Step 2: Convert to fraction form
   28,245/61,139 = 61,139/x
3. Step 3: Cross multiply
   28,245x = 61,139 × 61,139
4. Step 4: Simplify right side
   28,245x = 3,737,977,321
5. Step 5: Solve for x
   x = 3,737,977,321/28,245
6. Step 6: Final answer
   x = 132,341.20