Finding the Third Proportional to 765,370 and 1,670,636

Step by Step Solution

1. Step 1: Write the proportion equation
   765,370 : 1,670,636 = 1,670,636 : x
2. Step 2: Convert to fraction form
   765,370/1,670,636 = 1,670,636/x
3. Step 3: Cross multiply
   765,370x = 1,670,636 × 1,670,636
4. Step 4: Simplify right side
   765,370x = 2,791,024,644,496
5. Step 5: Solve for x
   x = 2,791,024,644,496/765,370
6. Step 6: Final answer
   x = 3,646,634.50