Finding the Third Proportional to 4,050,423 and 8,643,222

Step by Step Solution

1. Step 1: Write the proportion equation
   4,050,423 : 8,643,222 = 8,643,222 : x
2. Step 2: Convert to fraction form
   4,050,423/8,643,222 = 8,643,222/x
3. Step 3: Cross multiply
   4,050,423x = 8,643,222 × 8,643,222
4. Step 4: Simplify right side
   4,050,423x = 74,705,286,541,284
5. Step 5: Solve for x
   x = 74,705,286,541,284/4,050,423
6. Step 6: Final answer
   x = 18,443,823.41