Finding the Third Proportional to 30,312.25 and 71,454.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,312.25 : 71,454.25 = 71,454.25 : x
2. Step 2: Convert to fraction form
   30,312.25/71,454.25 = 71,454.25/x
3. Step 3: Cross multiply
   30,312.25x = 71,454.25 × 71,454.25
4. Step 4: Simplify right side
   30,312.25x = 5,105,709,843.06
5. Step 5: Solve for x
   x = 5,105,709,843.06/30,312.25
6. Step 6: Final answer
   x = 168,437.18