Finding the Third Proportional to 12,980.81 and 28,364.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,980.81 : 28,364.06 = 28,364.06 : x
2. Step 2: Convert to fraction form
   12,980.81/28,364.06 = 28,364.06/x
3. Step 3: Cross multiply
   12,980.81x = 28,364.06 × 28,364.06
4. Step 4: Simplify right side
   12,980.81x = 804,520,041.50
5. Step 5: Solve for x
   x = 804,520,041.50/12,980.81
6. Step 6: Final answer
   x = 61,977.63