Finding the Third Proportional to 13,773,390 and 20,588,116

Step by Step Solution

1. Step 1: Write the proportion equation
   13,773,390 : 20,588,116 = 20,588,116 : x
2. Step 2: Convert to fraction form
   13,773,390/20,588,116 = 20,588,116/x
3. Step 3: Cross multiply
   13,773,390x = 20,588,116 × 20,588,116
4. Step 4: Simplify right side
   13,773,390x = 423,870,520,429,456
5. Step 5: Solve for x
   x = 423,870,520,429,456/13,773,390
6. Step 6: Final answer
   x = 30,774,596.55