Finding the Third Proportional to 56,085 and 83,640

Step by Step Solution

1. Step 1: Write the proportion equation
   56,085 : 83,640 = 83,640 : x
2. Step 2: Convert to fraction form
   56,085/83,640 = 83,640/x
3. Step 3: Cross multiply
   56,085x = 83,640 × 83,640
4. Step 4: Simplify right side
   56,085x = 6,995,649,600
5. Step 5: Solve for x
   x = 6,995,649,600/56,085
6. Step 6: Final answer
   x = 124,732.99