Finding the Third Proportional to 811,064,906 and 1,665,126,412

Step by Step Solution

1. Step 1: Write the proportion equation
   811,064,906 : 1,665,126,412 = 1,665,126,412 : x
2. Step 2: Convert to fraction form
   811,064,906/1,665,126,412 = 1,665,126,412/x
3. Step 3: Cross multiply
   811,064,906x = 1,665,126,412 × 1,665,126,412
4. Step 4: Simplify right side
   811,064,906x = 2,772,645,967,939,993,600
5. Step 5: Solve for x
   x = 2,772,645,967,939,993,600/811,064,906
6. Step 6: Final answer
   x = 3,418,525,382.41