Finding the Third Proportional to 516,438 and 1,118,637

Step by Step Solution

1. Step 1: Write the proportion equation
   516,438 : 1,118,637 = 1,118,637 : x
2. Step 2: Convert to fraction form
   516,438/1,118,637 = 1,118,637/x
3. Step 3: Cross multiply
   516,438x = 1,118,637 × 1,118,637
4. Step 4: Simplify right side
   516,438x = 1,251,348,737,769
5. Step 5: Solve for x
   x = 1,251,348,737,769/516,438
6. Step 6: Final answer
   x = 2,423,037.69