Finding the Third Proportional to 9,090.38 and 19,612.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,090.38 : 19,612.88 = 19,612.88 : x
2. Step 2: Convert to fraction form
   9,090.38/19,612.88 = 19,612.88/x
3. Step 3: Cross multiply
   9,090.38x = 19,612.88 × 19,612.88
4. Step 4: Simplify right side
   9,090.38x = 384,664,865.77
5. Step 5: Solve for x
   x = 384,664,865.77/9,090.38
6. Step 6: Final answer
   x = 42,315.62