Finding the Third Proportional to 10,180,440 and 21,818,178

Step by Step Solution

1. Step 1: Write the proportion equation
   10,180,440 : 21,818,178 = 21,818,178 : x
2. Step 2: Convert to fraction form
   10,180,440/21,818,178 = 21,818,178/x
3. Step 3: Cross multiply
   10,180,440x = 21,818,178 × 21,818,178
4. Step 4: Simplify right side
   10,180,440x = 476,032,891,239,684
5. Step 5: Solve for x
   x = 476,032,891,239,684/10,180,440
6. Step 6: Final answer
   x = 46,759,559.63