Finding the Third Proportional to 28,985 and 61,083.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,985 : 61,083.50 = 61,083.50 : x
2. Step 2: Convert to fraction form
   28,985/61,083.50 = 61,083.50/x
3. Step 3: Cross multiply
   28,985x = 61,083.50 × 61,083.50
4. Step 4: Simplify right side
   28,985x = 3,731,193,972.25
5. Step 5: Solve for x
   x = 3,731,193,972.25/28,985
6. Step 6: Final answer
   x = 128,728.44