Finding the Third Proportional to 1,507,128,142 and 2,035,623,643

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507,128,142 : 2,035,623,643 = 2,035,623,643 : x
2. Step 2: Convert to fraction form
   1,507,128,142/2,035,623,643 = 2,035,623,643/x
3. Step 3: Cross multiply
   1,507,128,142x = 2,035,623,643 × 2,035,623,643
4. Step 4: Simplify right side
   1,507,128,142x = 4,143,763,615,940,591,616
5. Step 5: Solve for x
   x = 4,143,763,615,940,591,616/1,507,128,142
6. Step 6: Final answer
   x = 2,749,443,461.68