Finding the Third Proportional to 64,863 and 141,090

Step by Step Solution

1. Step 1: Write the proportion equation
   64,863 : 141,090 = 141,090 : x
2. Step 2: Convert to fraction form
   64,863/141,090 = 141,090/x
3. Step 3: Cross multiply
   64,863x = 141,090 × 141,090
4. Step 4: Simplify right side
   64,863x = 19,906,388,100
5. Step 5: Solve for x
   x = 19,906,388,100/64,863
6. Step 6: Final answer
   x = 306,898.97