Finding the Third Proportional to 67,209 and 99,277.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,209 : 99,277.50 = 99,277.50 : x
2. Step 2: Convert to fraction form
   67,209/99,277.50 = 99,277.50/x
3. Step 3: Cross multiply
   67,209x = 99,277.50 × 99,277.50
4. Step 4: Simplify right side
   67,209x = 9,856,022,006.25
5. Step 5: Solve for x
   x = 9,856,022,006.25/67,209
6. Step 6: Final answer
   x = 146,647.35