Finding the Third Proportional to 69,130 and 148,100

Step by Step Solution

1. Step 1: Write the proportion equation
   69,130 : 148,100 = 148,100 : x
2. Step 2: Convert to fraction form
   69,130/148,100 = 148,100/x
3. Step 3: Cross multiply
   69,130x = 148,100 × 148,100
4. Step 4: Simplify right side
   69,130x = 21,933,610,000
5. Step 5: Solve for x
   x = 21,933,610,000/69,130
6. Step 6: Final answer
   x = 317,280.63