Finding the Third Proportional to 12,886.59 and 30,109.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,886.59 : 30,109.22 = 30,109.22 : x
2. Step 2: Convert to fraction form
   12,886.59/30,109.22 = 30,109.22/x
3. Step 3: Cross multiply
   12,886.59x = 30,109.22 × 30,109.22
4. Step 4: Simplify right side
   12,886.59x = 906,565,053.74
5. Step 5: Solve for x
   x = 906,565,053.74/12,886.59
6. Step 6: Final answer
   x = 70,349.47