Finding the Third Proportional to 141,880.50 and 212,841

Step by Step Solution

1. Step 1: Write the proportion equation
   141,880.50 : 212,841 = 212,841 : x
2. Step 2: Convert to fraction form
   141,880.50/212,841 = 212,841/x
3. Step 3: Cross multiply
   141,880.50x = 212,841 × 212,841
4. Step 4: Simplify right side
   141,880.50x = 45,301,291,281
5. Step 5: Solve for x
   x = 45,301,291,281/141,880.50
6. Step 6: Final answer
   x = 319,291.88