Finding the Third Proportional to 5,072,530,478 and 10,287,688,984

Step by Step Solution

1. Step 1: Write the proportion equation
   5,072,530,478 : 10,287,688,984 = 10,287,688,984 : x
2. Step 2: Convert to fraction form
   5,072,530,478/10,287,688,984 = 10,287,688,984/x
3. Step 3: Cross multiply
   5,072,530,478x = 10,287,688,984 × 10,287,688,984
4. Step 4: Simplify right side
   5,072,530,478x = 105,836,544,631,514,955,776
5. Step 5: Solve for x
   x = 105,836,544,631,514,955,776/5,072,530,478
6. Step 6: Final answer
   x = 20,864,644,399.98