Finding the Third Proportional to 18,720,490,942,520 and 37,967,359,525,144

Step by Step Solution

1. Step 1: Write the proportion equation
   18,720,490,942,520 : 37,967,359,525,144 = 37,967,359,525,144 : x
2. Step 2: Convert to fraction form
   18,720,490,942,520/37,967,359,525,144 = 37,967,359,525,144/x
3. Step 3: Cross multiply
   18,720,490,942,520x = 37,967,359,525,144 × 37,967,359,525,144
4. Step 4: Simplify right side
   18,720,490,942,520x = 1,441,520,389,311,542,767,933,980,672
5. Step 5: Solve for x
   x = 1,441,520,389,311,542,767,933,980,672/18,720,490,942,520
6. Step 6: Final answer
   x = 77,002,274,872,899.09