Finding the Third Proportional to 30,000.38 and 64,410.19

Step by Step Solution

1. Step 1: Write the proportion equation
   30,000.38 : 64,410.19 = 64,410.19 : x
2. Step 2: Convert to fraction form
   30,000.38/64,410.19 = 64,410.19/x
3. Step 3: Cross multiply
   30,000.38x = 64,410.19 × 64,410.19
4. Step 4: Simplify right side
   30,000.38x = 4,148,672,253.79
5. Step 5: Solve for x
   x = 4,148,672,253.79/30,000.38
6. Step 6: Final answer
   x = 138,287.35