Finding the Third Proportional to 538,230 and 1,268,758.50

Step by Step Solution

1. Step 1: Write the proportion equation
   538,230 : 1,268,758.50 = 1,268,758.50 : x
2. Step 2: Convert to fraction form
   538,230/1,268,758.50 = 1,268,758.50/x
3. Step 3: Cross multiply
   538,230x = 1,268,758.50 × 1,268,758.50
4. Step 4: Simplify right side
   538,230x = 1,609,748,131,322.25
5. Step 5: Solve for x
   x = 1,609,748,131,322.25/538,230
6. Step 6: Final answer
   x = 2,990,818.30