Finding the Third Proportional to 89,572 and 136,140

Step by Step Solution

1. Step 1: Write the proportion equation
   89,572 : 136,140 = 136,140 : x
2. Step 2: Convert to fraction form
   89,572/136,140 = 136,140/x
3. Step 3: Cross multiply
   89,572x = 136,140 × 136,140
4. Step 4: Simplify right side
   89,572x = 18,534,099,600
5. Step 5: Solve for x
   x = 18,534,099,600/89,572
6. Step 6: Final answer
   x = 206,918.45