Finding the Third Proportional to 3,591,385 and 7,881,219

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591,385 : 7,881,219 = 7,881,219 : x
2. Step 2: Convert to fraction form
   3,591,385/7,881,219 = 7,881,219/x
3. Step 3: Cross multiply
   3,591,385x = 7,881,219 × 7,881,219
4. Step 4: Simplify right side
   3,591,385x = 62,113,612,925,961
5. Step 5: Solve for x
   x = 62,113,612,925,961/3,591,385
6. Step 6: Final answer
   x = 17,295,169.67