Finding the Third Proportional to 28,681 and 61,513.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,681 : 61,513.75 = 61,513.75 : x
2. Step 2: Convert to fraction form
   28,681/61,513.75 = 61,513.75/x
3. Step 3: Cross multiply
   28,681x = 61,513.75 × 61,513.75
4. Step 4: Simplify right side
   28,681x = 3,783,941,439.06
5. Step 5: Solve for x
   x = 3,783,941,439.06/28,681
6. Step 6: Final answer
   x = 131,931.99