Finding the Third Proportional to 136,629,920 and 297,519,139

Step by Step Solution

1. Step 1: Write the proportion equation
   136,629,920 : 297,519,139 = 297,519,139 : x
2. Step 2: Convert to fraction form
   136,629,920/297,519,139 = 297,519,139/x
3. Step 3: Cross multiply
   136,629,920x = 297,519,139 × 297,519,139
4. Step 4: Simplify right side
   136,629,920x = 88,517,638,071,301,328
5. Step 5: Solve for x
   x = 88,517,638,071,301,328/136,629,920
6. Step 6: Final answer
   x = 647,864,231.14