Finding the Third Proportional to 31,413,744,366 and 50,009,640,619.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,413,744,366 : 50,009,640,619.50 = 50,009,640,619.50 : x
2. Step 2: Convert to fraction form
   31,413,744,366/50,009,640,619.50 = 50,009,640,619.50/x
3. Step 3: Cross multiply
   31,413,744,366x = 50,009,640,619.50 × 50,009,640,619.50
4. Step 4: Simplify right side
   31,413,744,366x = 2,500,964,154,891,544,559,616
5. Step 5: Solve for x
   x = 2,500,964,154,891,544,559,616/31,413,744,366
6. Step 6: Final answer
   x = 79,613,691,566.12