Finding the Third Proportional to 64,366.50 and 141,820.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,366.50 : 141,820.50 = 141,820.50 : x
2. Step 2: Convert to fraction form
   64,366.50/141,820.50 = 141,820.50/x
3. Step 3: Cross multiply
   64,366.50x = 141,820.50 × 141,820.50
4. Step 4: Simplify right side
   64,366.50x = 20,113,054,220.25
5. Step 5: Solve for x
   x = 20,113,054,220.25/64,366.50
6. Step 6: Final answer
   x = 312,477.05