Finding the Third Proportional to 55,178,735 and 130,071,638

Step by Step Solution

1. Step 1: Write the proportion equation
   55,178,735 : 130,071,638 = 130,071,638 : x
2. Step 2: Convert to fraction form
   55,178,735/130,071,638 = 130,071,638/x
3. Step 3: Cross multiply
   55,178,735x = 130,071,638 × 130,071,638
4. Step 4: Simplify right side
   55,178,735x = 16,918,631,012,003,044
5. Step 5: Solve for x
   x = 16,918,631,012,003,044/55,178,735
6. Step 6: Final answer
   x = 306,615,057.63