Finding the Third Proportional to 69,100 and 143,120

Step by Step Solution

1. Step 1: Write the proportion equation
   69,100 : 143,120 = 143,120 : x
2. Step 2: Convert to fraction form
   69,100/143,120 = 143,120/x
3. Step 3: Cross multiply
   69,100x = 143,120 × 143,120
4. Step 4: Simplify right side
   69,100x = 20,483,334,400
5. Step 5: Solve for x
   x = 20,483,334,400/69,100
6. Step 6: Final answer
   x = 296,430.31