Finding the Third Proportional to 1,615,830 and 2,505,402

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615,830 : 2,505,402 = 2,505,402 : x
2. Step 2: Convert to fraction form
   1,615,830/2,505,402 = 2,505,402/x
3. Step 3: Cross multiply
   1,615,830x = 2,505,402 × 2,505,402
4. Step 4: Simplify right side
   1,615,830x = 6,277,039,181,604
5. Step 5: Solve for x
   x = 6,277,039,181,604/1,615,830
6. Step 6: Final answer
   x = 3,884,715.09