Finding the Third Proportional to 12,876.47 and 28,210.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,876.47 : 28,210.78 = 28,210.78 : x
2. Step 2: Convert to fraction form
   12,876.47/28,210.78 = 28,210.78/x
3. Step 3: Cross multiply
   12,876.47x = 28,210.78 × 28,210.78
4. Step 4: Simplify right side
   12,876.47x = 795,848,178.74
5. Step 5: Solve for x
   x = 795,848,178.74/12,876.47
6. Step 6: Final answer
   x = 61,806.40