Finding the Third Proportional to 112,860 and 266,405.63

Step by Step Solution

1. Step 1: Write the proportion equation
   112,860 : 266,405.63 = 266,405.63 : x
2. Step 2: Convert to fraction form
   112,860/266,405.63 = 266,405.63/x
3. Step 3: Cross multiply
   112,860x = 266,405.63 × 266,405.63
4. Step 4: Simplify right side
   112,860x = 70,971,957,031.64
5. Step 5: Solve for x
   x = 70,971,957,031.64/112,860
6. Step 6: Final answer
   x = 628,849.52