Finding the Third Proportional to 12,930 and 31,101

Step by Step Solution

1. Step 1: Write the proportion equation
   12,930 : 31,101 = 31,101 : x
2. Step 2: Convert to fraction form
   12,930/31,101 = 31,101/x
3. Step 3: Cross multiply
   12,930x = 31,101 × 31,101
4. Step 4: Simplify right side
   12,930x = 967,272,201
5. Step 5: Solve for x
   x = 967,272,201/12,930
6. Step 6: Final answer
   x = 74,808.37