Finding the Third Proportional to 15,980.63 and 35,454.38

Step by Step Solution

1. Step 1: Write the proportion equation
   15,980.63 : 35,454.38 = 35,454.38 : x
2. Step 2: Convert to fraction form
   15,980.63/35,454.38 = 35,454.38/x
3. Step 3: Cross multiply
   15,980.63x = 35,454.38 × 35,454.38
4. Step 4: Simplify right side
   15,980.63x = 1,257,012,706.64
5. Step 5: Solve for x
   x = 1,257,012,706.64/15,980.63
6. Step 6: Final answer
   x = 78,658.54