Finding the Third Proportional to 64,880 and 141,804

Step by Step Solution

1. Step 1: Write the proportion equation
   64,880 : 141,804 = 141,804 : x
2. Step 2: Convert to fraction form
   64,880/141,804 = 141,804/x
3. Step 3: Cross multiply
   64,880x = 141,804 × 141,804
4. Step 4: Simplify right side
   64,880x = 20,108,374,416
5. Step 5: Solve for x
   x = 20,108,374,416/64,880
6. Step 6: Final answer
   x = 309,931.79