Finding the Third Proportional to 1,236,558,718.50 and 2,666,822,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,236,558,718.50 : 2,666,822,185.50 = 2,666,822,185.50 : x
2. Step 2: Convert to fraction form
   1,236,558,718.50/2,666,822,185.50 = 2,666,822,185.50/x
3. Step 3: Cross multiply
   1,236,558,718.50x = 2,666,822,185.50 × 2,666,822,185.50
4. Step 4: Simplify right side
   1,236,558,718.50x = 7,111,940,569,074,996,224
5. Step 5: Solve for x
   x = 7,111,940,569,074,996,224/1,236,558,718.50
6. Step 6: Final answer
   x = 5,751,397,376.18