Finding the Third Proportional to 661,645 and 1,435,312

Step by Step Solution

1. Step 1: Write the proportion equation
   661,645 : 1,435,312 = 1,435,312 : x
2. Step 2: Convert to fraction form
   661,645/1,435,312 = 1,435,312/x
3. Step 3: Cross multiply
   661,645x = 1,435,312 × 1,435,312
4. Step 4: Simplify right side
   661,645x = 2,060,120,537,344
5. Step 5: Solve for x
   x = 2,060,120,537,344/661,645
6. Step 6: Final answer
   x = 3,113,634.26