Finding the Third Proportional to 19,510,985 and 42,018,700

Step by Step Solution

1. Step 1: Write the proportion equation
   19,510,985 : 42,018,700 = 42,018,700 : x
2. Step 2: Convert to fraction form
   19,510,985/42,018,700 = 42,018,700/x
3. Step 3: Cross multiply
   19,510,985x = 42,018,700 × 42,018,700
4. Step 4: Simplify right side
   19,510,985x = 1,765,571,149,690,000
5. Step 5: Solve for x
   x = 1,765,571,149,690,000/19,510,985
6. Step 6: Final answer
   x = 90,491,133.57