Finding the Third Proportional to 28,498.50 and 61,209

Step by Step Solution

1. Step 1: Write the proportion equation
   28,498.50 : 61,209 = 61,209 : x
2. Step 2: Convert to fraction form
   28,498.50/61,209 = 61,209/x
3. Step 3: Cross multiply
   28,498.50x = 61,209 × 61,209
4. Step 4: Simplify right side
   28,498.50x = 3,746,541,681
5. Step 5: Solve for x
   x = 3,746,541,681/28,498.50
6. Step 6: Final answer
   x = 131,464.52