Finding the Third Proportional to 78,607 and 111,119

Step by Step Solution

1. Step 1: Write the proportion equation
   78,607 : 111,119 = 111,119 : x
2. Step 2: Convert to fraction form
   78,607/111,119 = 111,119/x
3. Step 3: Cross multiply
   78,607x = 111,119 × 111,119
4. Step 4: Simplify right side
   78,607x = 12,347,432,161
5. Step 5: Solve for x
   x = 12,347,432,161/78,607
6. Step 6: Final answer
   x = 157,078.02