Finding the Third Proportional to 4,386,321 and 9,781,194

Step by Step Solution

1. Step 1: Write the proportion equation
   4,386,321 : 9,781,194 = 9,781,194 : x
2. Step 2: Convert to fraction form
   4,386,321/9,781,194 = 9,781,194/x
3. Step 3: Cross multiply
   4,386,321x = 9,781,194 × 9,781,194
4. Step 4: Simplify right side
   4,386,321x = 95,671,756,065,636
5. Step 5: Solve for x
   x = 95,671,756,065,636/4,386,321
6. Step 6: Final answer
   x = 21,811,389.56