Finding the Third Proportional to 64,692 and 141,453

Step by Step Solution

1. Step 1: Write the proportion equation
   64,692 : 141,453 = 141,453 : x
2. Step 2: Convert to fraction form
   64,692/141,453 = 141,453/x
3. Step 3: Cross multiply
   64,692x = 141,453 × 141,453
4. Step 4: Simplify right side
   64,692x = 20,008,951,209
5. Step 5: Solve for x
   x = 20,008,951,209/64,692
6. Step 6: Final answer
   x = 309,295.60