Finding the Third Proportional to 751.50 and 1,618.59

Step by Step Solution

1. Step 1: Write the proportion equation
   751.50 : 1,618.59 = 1,618.59 : x
2. Step 2: Convert to fraction form
   751.50/1,618.59 = 1,618.59/x
3. Step 3: Cross multiply
   751.50x = 1,618.59 × 1,618.59
4. Step 4: Simplify right side
   751.50x = 2,619,845.73
5. Step 5: Solve for x
   x = 2,619,845.73/751.50
6. Step 6: Final answer
   x = 3,486.16