Finding the Third Proportional to 55,899 and 84,570

Step by Step Solution

1. Step 1: Write the proportion equation
   55,899 : 84,570 = 84,570 : x
2. Step 2: Convert to fraction form
   55,899/84,570 = 84,570/x
3. Step 3: Cross multiply
   55,899x = 84,570 × 84,570
4. Step 4: Simplify right side
   55,899x = 7,152,084,900
5. Step 5: Solve for x
   x = 7,152,084,900/55,899
6. Step 6: Final answer
   x = 127,946.56