Finding the Third Proportional to 69,150 and 148,140

Step by Step Solution

1. Step 1: Write the proportion equation
   69,150 : 148,140 = 148,140 : x
2. Step 2: Convert to fraction form
   69,150/148,140 = 148,140/x
3. Step 3: Cross multiply
   69,150x = 148,140 × 148,140
4. Step 4: Simplify right side
   69,150x = 21,945,459,600
5. Step 5: Solve for x
   x = 21,945,459,600/69,150
6. Step 6: Final answer
   x = 317,360.23