Finding the Third Proportional to 69,150 and 148,810

Step by Step Solution

1. Step 1: Write the proportion equation
   69,150 : 148,810 = 148,810 : x
2. Step 2: Convert to fraction form
   69,150/148,810 = 148,810/x
3. Step 3: Cross multiply
   69,150x = 148,810 × 148,810
4. Step 4: Simplify right side
   69,150x = 22,144,416,100
5. Step 5: Solve for x
   x = 22,144,416,100/69,150
6. Step 6: Final answer
   x = 320,237.40