Finding the Third Proportional to 141,171.25 and 212,070

Step by Step Solution

1. Step 1: Write the proportion equation
   141,171.25 : 212,070 = 212,070 : x
2. Step 2: Convert to fraction form
   141,171.25/212,070 = 212,070/x
3. Step 3: Cross multiply
   141,171.25x = 212,070 × 212,070
4. Step 4: Simplify right side
   141,171.25x = 44,973,684,900
5. Step 5: Solve for x
   x = 44,973,684,900/141,171.25
6. Step 6: Final answer
   x = 318,575.38