Finding the Third Proportional to 435,146 and 675,196

Step by Step Solution

1. Step 1: Write the proportion equation
   435,146 : 675,196 = 675,196 : x
2. Step 2: Convert to fraction form
   435,146/675,196 = 675,196/x
3. Step 3: Cross multiply
   435,146x = 675,196 × 675,196
4. Step 4: Simplify right side
   435,146x = 455,889,638,416
5. Step 5: Solve for x
   x = 455,889,638,416/435,146
6. Step 6: Final answer
   x = 1,047,670.53