Finding the Third Proportional to 311,766,327 and 435,867,697.69

Step by Step Solution

1. Step 1: Write the proportion equation
   311,766,327 : 435,867,697.69 = 435,867,697.69 : x
2. Step 2: Convert to fraction form
   311,766,327/435,867,697.69 = 435,867,697.69/x
3. Step 3: Cross multiply
   311,766,327x = 435,867,697.69 × 435,867,697.69
4. Step 4: Simplify right side
   311,766,327x = 189,980,649,887,401,888
5. Step 5: Solve for x
   x = 189,980,649,887,401,888/311,766,327
6. Step 6: Final answer
   x = 609,368,727.26