Finding the Third Proportional to 619,308 and 1,256,122

Step by Step Solution

1. Step 1: Write the proportion equation
   619,308 : 1,256,122 = 1,256,122 : x
2. Step 2: Convert to fraction form
   619,308/1,256,122 = 1,256,122/x
3. Step 3: Cross multiply
   619,308x = 1,256,122 × 1,256,122
4. Step 4: Simplify right side
   619,308x = 1,577,842,478,884
5. Step 5: Solve for x
   x = 1,577,842,478,884/619,308
6. Step 6: Final answer
   x = 2,547,750.84