Finding the Third Proportional to 64,977.75 and 142,362

Step by Step Solution

1. Step 1: Write the proportion equation
   64,977.75 : 142,362 = 142,362 : x
2. Step 2: Convert to fraction form
   64,977.75/142,362 = 142,362/x
3. Step 3: Cross multiply
   64,977.75x = 142,362 × 142,362
4. Step 4: Simplify right side
   64,977.75x = 20,266,939,044
5. Step 5: Solve for x
   x = 20,266,939,044/64,977.75
6. Step 6: Final answer
   x = 311,905.83