Finding the Third Proportional to 19,470,670 and 42,025,860

Step by Step Solution

1. Step 1: Write the proportion equation
   19,470,670 : 42,025,860 = 42,025,860 : x
2. Step 2: Convert to fraction form
   19,470,670/42,025,860 = 42,025,860/x
3. Step 3: Cross multiply
   19,470,670x = 42,025,860 × 42,025,860
4. Step 4: Simplify right side
   19,470,670x = 1,766,172,908,739,600
5. Step 5: Solve for x
   x = 1,766,172,908,739,600/19,470,670
6. Step 6: Final answer
   x = 90,709,405.93