Finding the Third Proportional to 128,735,588 and 279,422,824

Step by Step Solution

1. Step 1: Write the proportion equation
   128,735,588 : 279,422,824 = 279,422,824 : x
2. Step 2: Convert to fraction form
   128,735,588/279,422,824 = 279,422,824/x
3. Step 3: Cross multiply
   128,735,588x = 279,422,824 × 279,422,824
4. Step 4: Simplify right side
   128,735,588x = 78,077,114,572,134,976
5. Step 5: Solve for x
   x = 78,077,114,572,134,976/128,735,588
6. Step 6: Final answer
   x = 606,492,080.28