Finding the Third Proportional to 149,025 and 322,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,025 : 322,912.50 = 322,912.50 : x
2. Step 2: Convert to fraction form
   149,025/322,912.50 = 322,912.50/x
3. Step 3: Cross multiply
   149,025x = 322,912.50 × 322,912.50
4. Step 4: Simplify right side
   149,025x = 104,272,482,656.25
5. Step 5: Solve for x
   x = 104,272,482,656.25/149,025
6. Step 6: Final answer
   x = 699,697.92