Finding the Third Proportional to 45,640 and 70,122

Step by Step Solution

1. Step 1: Write the proportion equation
   45,640 : 70,122 = 70,122 : x
2. Step 2: Convert to fraction form
   45,640/70,122 = 70,122/x
3. Step 3: Cross multiply
   45,640x = 70,122 × 70,122
4. Step 4: Simplify right side
   45,640x = 4,917,094,884
5. Step 5: Solve for x
   x = 4,917,094,884/45,640
6. Step 6: Final answer
   x = 107,736.52