Finding the Third Proportional to 9,570,176 and 21,000,390

Step by Step Solution

1. Step 1: Write the proportion equation
   9,570,176 : 21,000,390 = 21,000,390 : x
2. Step 2: Convert to fraction form
   9,570,176/21,000,390 = 21,000,390/x
3. Step 3: Cross multiply
   9,570,176x = 21,000,390 × 21,000,390
4. Step 4: Simplify right side
   9,570,176x = 441,016,380,152,100
5. Step 5: Solve for x
   x = 441,016,380,152,100/9,570,176
6. Step 6: Final answer
   x = 46,082,368.82