Finding the Third Proportional to 4,021,602 and 8,765,748

Step by Step Solution

1. Step 1: Write the proportion equation
   4,021,602 : 8,765,748 = 8,765,748 : x
2. Step 2: Convert to fraction form
   4,021,602/8,765,748 = 8,765,748/x
3. Step 3: Cross multiply
   4,021,602x = 8,765,748 × 8,765,748
4. Step 4: Simplify right side
   4,021,602x = 76,838,337,999,504
5. Step 5: Solve for x
   x = 76,838,337,999,504/4,021,602
6. Step 6: Final answer
   x = 19,106,400.38