Finding the Third Proportional to 1,561,400 and 2,342,120

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561,400 : 2,342,120 = 2,342,120 : x
2. Step 2: Convert to fraction form
   1,561,400/2,342,120 = 2,342,120/x
3. Step 3: Cross multiply
   1,561,400x = 2,342,120 × 2,342,120
4. Step 4: Simplify right side
   1,561,400x = 5,485,526,094,400
5. Step 5: Solve for x
   x = 5,485,526,094,400/1,561,400
6. Step 6: Final answer
   x = 3,513,210.00