Finding the Third Proportional to 64,910 and 141,835

Step by Step Solution

1. Step 1: Write the proportion equation
   64,910 : 141,835 = 141,835 : x
2. Step 2: Convert to fraction form
   64,910/141,835 = 141,835/x
3. Step 3: Cross multiply
   64,910x = 141,835 × 141,835
4. Step 4: Simplify right side
   64,910x = 20,117,167,225
5. Step 5: Solve for x
   x = 20,117,167,225/64,910
6. Step 6: Final answer
   x = 309,924.01