Finding the Third Proportional to 69,472.37 and 149,477.27

Step by Step Solution

1. Step 1: Write the proportion equation
   69,472.37 : 149,477.27 = 149,477.27 : x
2. Step 2: Convert to fraction form
   69,472.37/149,477.27 = 149,477.27/x
3. Step 3: Cross multiply
   69,472.37x = 149,477.27 × 149,477.27
4. Step 4: Simplify right side
   69,472.37x = 22,343,455,274.31
5. Step 5: Solve for x
   x = 22,343,455,274.31/69,472.37
6. Step 6: Final answer
   x = 321,616.42