Finding the Third Proportional to 28,068.75 and 61,420.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,068.75 : 61,420.50 = 61,420.50 : x
2. Step 2: Convert to fraction form
   28,068.75/61,420.50 = 61,420.50/x
3. Step 3: Cross multiply
   28,068.75x = 61,420.50 × 61,420.50
4. Step 4: Simplify right side
   28,068.75x = 3,772,477,820.25
5. Step 5: Solve for x
   x = 3,772,477,820.25/28,068.75
6. Step 6: Final answer
   x = 134,401.35