Finding the Third Proportional to 47,128 and 99,710

Step by Step Solution

1. Step 1: Write the proportion equation
   47,128 : 99,710 = 99,710 : x
2. Step 2: Convert to fraction form
   47,128/99,710 = 99,710/x
3. Step 3: Cross multiply
   47,128x = 99,710 × 99,710
4. Step 4: Simplify right side
   47,128x = 9,942,084,100
5. Step 5: Solve for x
   x = 9,942,084,100/47,128
6. Step 6: Final answer
   x = 210,959.18