Finding the Third Proportional to 65,772 and 99,085.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,772 : 99,085.50 = 99,085.50 : x
2. Step 2: Convert to fraction form
   65,772/99,085.50 = 99,085.50/x
3. Step 3: Cross multiply
   65,772x = 99,085.50 × 99,085.50
4. Step 4: Simplify right side
   65,772x = 9,817,936,310.25
5. Step 5: Solve for x
   x = 9,817,936,310.25/65,772
6. Step 6: Final answer
   x = 149,272.28