Finding the Third Proportional to 7,077,287,802 and 10,988,838,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,077,287,802 : 10,988,838,517.50 = 10,988,838,517.50 : x
2. Step 2: Convert to fraction form
   7,077,287,802/10,988,838,517.50 = 10,988,838,517.50/x
3. Step 3: Cross multiply
   7,077,287,802x = 10,988,838,517.50 × 10,988,838,517.50
4. Step 4: Simplify right side
   7,077,287,802x = 120,754,571,963,691,597,824
5. Step 5: Solve for x
   x = 120,754,571,963,691,597,824/7,077,287,802
6. Step 6: Final answer
   x = 17,062,266,696.23