Finding the Third Proportional to 12,945.38 and 28,312.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,945.38 : 28,312.88 = 28,312.88 : x
2. Step 2: Convert to fraction form
   12,945.38/28,312.88 = 28,312.88/x
3. Step 3: Cross multiply
   12,945.38x = 28,312.88 × 28,312.88
4. Step 4: Simplify right side
   12,945.38x = 801,618,890.77
5. Step 5: Solve for x
   x = 801,618,890.77/12,945.38
6. Step 6: Final answer
   x = 61,923.19