Finding the Third Proportional to 77,712 and 116,087

Step by Step Solution

1. Step 1: Write the proportion equation
   77,712 : 116,087 = 116,087 : x
2. Step 2: Convert to fraction form
   77,712/116,087 = 116,087/x
3. Step 3: Cross multiply
   77,712x = 116,087 × 116,087
4. Step 4: Simplify right side
   77,712x = 13,476,191,569
5. Step 5: Solve for x
   x = 13,476,191,569/77,712
6. Step 6: Final answer
   x = 173,411.98