Finding the Third Proportional to 516,300 and 1,118,407

Step by Step Solution

1. Step 1: Write the proportion equation
   516,300 : 1,118,407 = 1,118,407 : x
2. Step 2: Convert to fraction form
   516,300/1,118,407 = 1,118,407/x
3. Step 3: Cross multiply
   516,300x = 1,118,407 × 1,118,407
4. Step 4: Simplify right side
   516,300x = 1,250,834,217,649
5. Step 5: Solve for x
   x = 1,250,834,217,649/516,300
6. Step 6: Final answer
   x = 2,422,688.78