Finding the Third Proportional to 66,406.50 and 146,151

Step by Step Solution

1. Step 1: Write the proportion equation
   66,406.50 : 146,151 = 146,151 : x
2. Step 2: Convert to fraction form
   66,406.50/146,151 = 146,151/x
3. Step 3: Cross multiply
   66,406.50x = 146,151 × 146,151
4. Step 4: Simplify right side
   66,406.50x = 21,360,114,801
5. Step 5: Solve for x
   x = 21,360,114,801/66,406.50
6. Step 6: Final answer
   x = 321,656.99