Finding the Third Proportional to 61,245 and 131,237.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,245 : 131,237.50 = 131,237.50 : x
2. Step 2: Convert to fraction form
   61,245/131,237.50 = 131,237.50/x
3. Step 3: Cross multiply
   61,245x = 131,237.50 × 131,237.50
4. Step 4: Simplify right side
   61,245x = 17,223,281,406.25
5. Step 5: Solve for x
   x = 17,223,281,406.25/61,245
6. Step 6: Final answer
   x = 281,219.39