Finding the Third Proportional to 12,830.91 and 29,809.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,830.91 : 29,809.27 = 29,809.27 : x
2. Step 2: Convert to fraction form
   12,830.91/29,809.27 = 29,809.27/x
3. Step 3: Cross multiply
   12,830.91x = 29,809.27 × 29,809.27
4. Step 4: Simplify right side
   12,830.91x = 888,592,317.10
5. Step 5: Solve for x
   x = 888,592,317.10/12,830.91
6. Step 6: Final answer
   x = 69,254.06