Finding the Third Proportional to 1,622.91 and 3,530.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622.91 : 3,530.63 = 3,530.63 : x
2. Step 2: Convert to fraction form
   1,622.91/3,530.63 = 3,530.63/x
3. Step 3: Cross multiply
   1,622.91x = 3,530.63 × 3,530.63
4. Step 4: Simplify right side
   1,622.91x = 12,465,312.89
5. Step 5: Solve for x
   x = 12,465,312.89/1,622.91
6. Step 6: Final answer
   x = 7,680.86