Finding the Third Proportional to 129,083 and 279,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,083 : 279,611.50 = 279,611.50 : x
2. Step 2: Convert to fraction form
   129,083/279,611.50 = 279,611.50/x
3. Step 3: Cross multiply
   129,083x = 279,611.50 × 279,611.50
4. Step 4: Simplify right side
   129,083x = 78,182,590,932.25
5. Step 5: Solve for x
   x = 78,182,590,932.25/129,083
6. Step 6: Final answer
   x = 605,676.90