Finding the Third Proportional to 4,075,850 and 8,637,220

Step by Step Solution

1. Step 1: Write the proportion equation
   4,075,850 : 8,637,220 = 8,637,220 : x
2. Step 2: Convert to fraction form
   4,075,850/8,637,220 = 8,637,220/x
3. Step 3: Cross multiply
   4,075,850x = 8,637,220 × 8,637,220
4. Step 4: Simplify right side
   4,075,850x = 74,601,569,328,400
5. Step 5: Solve for x
   x = 74,601,569,328,400/4,075,850
6. Step 6: Final answer
   x = 18,303,315.71