Finding the Third Proportional to 65,799 and 156,217.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,799 : 156,217.50 = 156,217.50 : x
2. Step 2: Convert to fraction form
   65,799/156,217.50 = 156,217.50/x
3. Step 3: Cross multiply
   65,799x = 156,217.50 × 156,217.50
4. Step 4: Simplify right side
   65,799x = 24,403,907,306.25
5. Step 5: Solve for x
   x = 24,403,907,306.25/65,799
6. Step 6: Final answer
   x = 370,885.69