Finding the Third Proportional to 1,421,886 and 3,158,700

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421,886 : 3,158,700 = 3,158,700 : x
2. Step 2: Convert to fraction form
   1,421,886/3,158,700 = 3,158,700/x
3. Step 3: Cross multiply
   1,421,886x = 3,158,700 × 3,158,700
4. Step 4: Simplify right side
   1,421,886x = 9,977,385,690,000
5. Step 5: Solve for x
   x = 9,977,385,690,000/1,421,886
6. Step 6: Final answer
   x = 7,017,008.18