Finding the Third Proportional to 2,139,318 and 4,698,486

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,318 : 4,698,486 = 4,698,486 : x
2. Step 2: Convert to fraction form
   2,139,318/4,698,486 = 4,698,486/x
3. Step 3: Cross multiply
   2,139,318x = 4,698,486 × 4,698,486
4. Step 4: Simplify right side
   2,139,318x = 22,075,770,692,196
5. Step 5: Solve for x
   x = 22,075,770,692,196/2,139,318
6. Step 6: Final answer
   x = 10,319,069.30