Finding the Third Proportional to 4,386,321 and 9,781,196

Step by Step Solution

1. Step 1: Write the proportion equation
   4,386,321 : 9,781,196 = 9,781,196 : x
2. Step 2: Convert to fraction form
   4,386,321/9,781,196 = 9,781,196/x
3. Step 3: Cross multiply
   4,386,321x = 9,781,196 × 9,781,196
4. Step 4: Simplify right side
   4,386,321x = 95,671,795,190,416
5. Step 5: Solve for x
   x = 95,671,795,190,416/4,386,321
6. Step 6: Final answer
   x = 21,811,398.48