Finding the Third Proportional to 65,019.75 and 141,946.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,019.75 : 141,946.50 = 141,946.50 : x
2. Step 2: Convert to fraction form
   65,019.75/141,946.50 = 141,946.50/x
3. Step 3: Cross multiply
   65,019.75x = 141,946.50 × 141,946.50
4. Step 4: Simplify right side
   65,019.75x = 20,148,808,862.25
5. Step 5: Solve for x
   x = 20,148,808,862.25/65,019.75
6. Step 6: Final answer
   x = 309,887.52