Finding the Third Proportional to 646,350 and 1,415,820

Step by Step Solution

1. Step 1: Write the proportion equation
   646,350 : 1,415,820 = 1,415,820 : x
2. Step 2: Convert to fraction form
   646,350/1,415,820 = 1,415,820/x
3. Step 3: Cross multiply
   646,350x = 1,415,820 × 1,415,820
4. Step 4: Simplify right side
   646,350x = 2,004,546,272,400
5. Step 5: Solve for x
   x = 2,004,546,272,400/646,350
6. Step 6: Final answer
   x = 3,101,332.52