Finding the Third Proportional to 18,720,490,942,522 and 37,967,359,525,148

Step by Step Solution

1. Step 1: Write the proportion equation
   18,720,490,942,522 : 37,967,359,525,148 = 37,967,359,525,148 : x
2. Step 2: Convert to fraction form
   18,720,490,942,522/37,967,359,525,148 = 37,967,359,525,148/x
3. Step 3: Cross multiply
   18,720,490,942,522x = 37,967,359,525,148 × 37,967,359,525,148
4. Step 4: Simplify right side
   18,720,490,942,522x = 1,441,520,389,311,846,508,021,153,792
5. Step 5: Solve for x
   x = 1,441,520,389,311,846,508,021,153,792/18,720,490,942,522
6. Step 6: Final answer
   x = 77,002,274,872,907.09