Finding the Third Proportional to 1,780,698 and 4,199,346

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780,698 : 4,199,346 = 4,199,346 : x
2. Step 2: Convert to fraction form
   1,780,698/4,199,346 = 4,199,346/x
3. Step 3: Cross multiply
   1,780,698x = 4,199,346 × 4,199,346
4. Step 4: Simplify right side
   1,780,698x = 17,634,506,827,716
5. Step 5: Solve for x
   x = 17,634,506,827,716/1,780,698
6. Step 6: Final answer
   x = 9,903,142.94