Finding the Third Proportional to 58,689,262 and 128,715,926

Step by Step Solution

1. Step 1: Write the proportion equation
   58,689,262 : 128,715,926 = 128,715,926 : x
2. Step 2: Convert to fraction form
   58,689,262/128,715,926 = 128,715,926/x
3. Step 3: Cross multiply
   58,689,262x = 128,715,926 × 128,715,926
4. Step 4: Simplify right side
   58,689,262x = 16,567,789,606,037,476
5. Step 5: Solve for x
   x = 16,567,789,606,037,476/58,689,262
6. Step 6: Final answer
   x = 282,296,778.69