Finding the Third Proportional to 77,679 and 134,851.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,679 : 134,851.50 = 134,851.50 : x
2. Step 2: Convert to fraction form
   77,679/134,851.50 = 134,851.50/x
3. Step 3: Cross multiply
   77,679x = 134,851.50 × 134,851.50
4. Step 4: Simplify right side
   77,679x = 18,184,927,052.25
5. Step 5: Solve for x
   x = 18,184,927,052.25/77,679
6. Step 6: Final answer
   x = 234,103.52