Finding the Third Proportional to 60,318 and 65,785.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,318 : 65,785.50 = 65,785.50 : x
2. Step 2: Convert to fraction form
   60,318/65,785.50 = 65,785.50/x
3. Step 3: Cross multiply
   60,318x = 65,785.50 × 65,785.50
4. Step 4: Simplify right side
   60,318x = 4,327,732,010.25
5. Step 5: Solve for x
   x = 4,327,732,010.25/60,318
6. Step 6: Final answer
   x = 71,748.60