Finding the Third Proportional to 135,958.50 and 291,600

Step by Step Solution

1. Step 1: Write the proportion equation
   135,958.50 : 291,600 = 291,600 : x
2. Step 2: Convert to fraction form
   135,958.50/291,600 = 291,600/x
3. Step 3: Cross multiply
   135,958.50x = 291,600 × 291,600
4. Step 4: Simplify right side
   135,958.50x = 85,030,560,000
5. Step 5: Solve for x
   x = 85,030,560,000/135,958.50
6. Step 6: Final answer
   x = 625,415.55