Finding the Third Proportional to 686,522.63 and 1,435,784.63

Step by Step Solution

1. Step 1: Write the proportion equation
   686,522.63 : 1,435,784.63 = 1,435,784.63 : x
2. Step 2: Convert to fraction form
   686,522.63/1,435,784.63 = 1,435,784.63/x
3. Step 3: Cross multiply
   686,522.63x = 1,435,784.63 × 1,435,784.63
4. Step 4: Simplify right side
   686,522.63x = 2,061,477,489,386.39
5. Step 5: Solve for x
   x = 2,061,477,489,386.39/686,522.63
6. Step 6: Final answer
   x = 3,002,781.58