Finding the Third Proportional to 69,510 and 149,820

Step by Step Solution

1. Step 1: Write the proportion equation
   69,510 : 149,820 = 149,820 : x
2. Step 2: Convert to fraction form
   69,510/149,820 = 149,820/x
3. Step 3: Cross multiply
   69,510x = 149,820 × 149,820
4. Step 4: Simplify right side
   69,510x = 22,446,032,400
5. Step 5: Solve for x
   x = 22,446,032,400/69,510
6. Step 6: Final answer
   x = 322,918.03