Finding the Third Proportional to 985,594 and 2,118,424

Step by Step Solution

1. Step 1: Write the proportion equation
   985,594 : 2,118,424 = 2,118,424 : x
2. Step 2: Convert to fraction form
   985,594/2,118,424 = 2,118,424/x
3. Step 3: Cross multiply
   985,594x = 2,118,424 × 2,118,424
4. Step 4: Simplify right side
   985,594x = 4,487,720,243,776
5. Step 5: Solve for x
   x = 4,487,720,243,776/985,594
6. Step 6: Final answer
   x = 4,553,315.30