Finding the Third Proportional to 17,112,760,377 and 36,580,585,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,112,760,377 : 36,580,585,142.50 = 36,580,585,142.50 : x
2. Step 2: Convert to fraction form
   17,112,760,377/36,580,585,142.50 = 36,580,585,142.50/x
3. Step 3: Cross multiply
   17,112,760,377x = 36,580,585,142.50 × 36,580,585,142.50
4. Step 4: Simplify right side
   17,112,760,377x = 1,338,139,209,367,691,722,752
5. Step 5: Solve for x
   x = 1,338,139,209,367,691,722,752/17,112,760,377
6. Step 6: Final answer
   x = 78,195,403,890.90