Finding the Third Proportional to 538,740 and 1,178,445.38

Step by Step Solution

1. Step 1: Write the proportion equation
   538,740 : 1,178,445.38 = 1,178,445.38 : x
2. Step 2: Convert to fraction form
   538,740/1,178,445.38 = 1,178,445.38/x
3. Step 3: Cross multiply
   538,740x = 1,178,445.38 × 1,178,445.38
4. Step 4: Simplify right side
   538,740x = 1,388,733,501,858.89
5. Step 5: Solve for x
   x = 1,388,733,501,858.89/538,740
6. Step 6: Final answer
   x = 2,577,743.44