Finding the Third Proportional to 64,908 and 141,831

Step by Step Solution

1. Step 1: Write the proportion equation
   64,908 : 141,831 = 141,831 : x
2. Step 2: Convert to fraction form
   64,908/141,831 = 141,831/x
3. Step 3: Cross multiply
   64,908x = 141,831 × 141,831
4. Step 4: Simplify right side
   64,908x = 20,116,032,561
5. Step 5: Solve for x
   x = 20,116,032,561/64,908
6. Step 6: Final answer
   x = 309,916.07