Finding the Third Proportional to 64,772 and 141,550

Step by Step Solution

1. Step 1: Write the proportion equation
   64,772 : 141,550 = 141,550 : x
2. Step 2: Convert to fraction form
   64,772/141,550 = 141,550/x
3. Step 3: Cross multiply
   64,772x = 141,550 × 141,550
4. Step 4: Simplify right side
   64,772x = 20,036,402,500
5. Step 5: Solve for x
   x = 20,036,402,500/64,772
6. Step 6: Final answer
   x = 309,337.41