Finding the Third Proportional to 140,764 and 212,361.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,764 : 212,361.50 = 212,361.50 : x
2. Step 2: Convert to fraction form
   140,764/212,361.50 = 212,361.50/x
3. Step 3: Cross multiply
   140,764x = 212,361.50 × 212,361.50
4. Step 4: Simplify right side
   140,764x = 45,097,406,682.25
5. Step 5: Solve for x
   x = 45,097,406,682.25/140,764
6. Step 6: Final answer
   x = 320,376.00