Finding the Third Proportional to 3,910,358 and 8,178,210

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910,358 : 8,178,210 = 8,178,210 : x
2. Step 2: Convert to fraction form
   3,910,358/8,178,210 = 8,178,210/x
3. Step 3: Cross multiply
   3,910,358x = 8,178,210 × 8,178,210
4. Step 4: Simplify right side
   3,910,358x = 66,883,118,804,100
5. Step 5: Solve for x
   x = 66,883,118,804,100/3,910,358
6. Step 6: Final answer
   x = 17,104,090.93