Finding the Third Proportional to 20,551,722 and 42,803,715

Step by Step Solution

1. Step 1: Write the proportion equation
   20,551,722 : 42,803,715 = 42,803,715 : x
2. Step 2: Convert to fraction form
   20,551,722/42,803,715 = 42,803,715/x
3. Step 3: Cross multiply
   20,551,722x = 42,803,715 × 42,803,715
4. Step 4: Simplify right side
   20,551,722x = 1,832,158,017,801,225
5. Step 5: Solve for x
   x = 1,832,158,017,801,225/20,551,722
6. Step 6: Final answer
   x = 89,148,637.66