Finding the Third Proportional to 149,872.50 and 313,602

Step by Step Solution

1. Step 1: Write the proportion equation
   149,872.50 : 313,602 = 313,602 : x
2. Step 2: Convert to fraction form
   149,872.50/313,602 = 313,602/x
3. Step 3: Cross multiply
   149,872.50x = 313,602 × 313,602
4. Step 4: Simplify right side
   149,872.50x = 98,346,214,404
5. Step 5: Solve for x
   x = 98,346,214,404/149,872.50
6. Step 6: Final answer
   x = 656,199.20