Finding the Third Proportional to 756,200 and 1,636,520

Step by Step Solution

1. Step 1: Write the proportion equation
   756,200 : 1,636,520 = 1,636,520 : x
2. Step 2: Convert to fraction form
   756,200/1,636,520 = 1,636,520/x
3. Step 3: Cross multiply
   756,200x = 1,636,520 × 1,636,520
4. Step 4: Simplify right side
   756,200x = 2,678,197,710,400
5. Step 5: Solve for x
   x = 2,678,197,710,400/756,200
6. Step 6: Final answer
   x = 3,541,652.62