Finding the Third Proportional to 19,768,172 and 42,734,170

Step by Step Solution

1. Step 1: Write the proportion equation
   19,768,172 : 42,734,170 = 42,734,170 : x
2. Step 2: Convert to fraction form
   19,768,172/42,734,170 = 42,734,170/x
3. Step 3: Cross multiply
   19,768,172x = 42,734,170 × 42,734,170
4. Step 4: Simplify right side
   19,768,172x = 1,826,209,285,588,900
5. Step 5: Solve for x
   x = 1,826,209,285,588,900/19,768,172
6. Step 6: Final answer
   x = 92,381,292.80