Finding the Third Proportional to 7,897.50 and 12,506.91

Step by Step Solution

1. Step 1: Write the proportion equation
   7,897.50 : 12,506.91 = 12,506.91 : x
2. Step 2: Convert to fraction form
   7,897.50/12,506.91 = 12,506.91/x
3. Step 3: Cross multiply
   7,897.50x = 12,506.91 × 12,506.91
4. Step 4: Simplify right side
   7,897.50x = 156,422,703.95
5. Step 5: Solve for x
   x = 156,422,703.95/7,897.50
6. Step 6: Final answer
   x = 19,806.61