Finding the Third Proportional to 4,213,766 and 9,100,132

Step by Step Solution

1. Step 1: Write the proportion equation
   4,213,766 : 9,100,132 = 9,100,132 : x
2. Step 2: Convert to fraction form
   4,213,766/9,100,132 = 9,100,132/x
3. Step 3: Cross multiply
   4,213,766x = 9,100,132 × 9,100,132
4. Step 4: Simplify right side
   4,213,766x = 82,812,402,417,424
5. Step 5: Solve for x
   x = 82,812,402,417,424/4,213,766
6. Step 6: Final answer
   x = 19,652,824.20