Finding the Third Proportional to 151,210 and 330,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,210 : 330,090.50 = 330,090.50 : x
2. Step 2: Convert to fraction form
   151,210/330,090.50 = 330,090.50/x
3. Step 3: Cross multiply
   151,210x = 330,090.50 × 330,090.50
4. Step 4: Simplify right side
   151,210x = 108,959,738,190.25
5. Step 5: Solve for x
   x = 108,959,738,190.25/151,210
6. Step 6: Final answer
   x = 720,585.53