Finding the Third Proportional to 12,798 and 30,975.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,798 : 30,975.75 = 30,975.75 : x
2. Step 2: Convert to fraction form
   12,798/30,975.75 = 30,975.75/x
3. Step 3: Cross multiply
   12,798x = 30,975.75 × 30,975.75
4. Step 4: Simplify right side
   12,798x = 959,497,088.06
5. Step 5: Solve for x
   x = 959,497,088.06/12,798
6. Step 6: Final answer
   x = 74,972.42