Finding the Third Proportional to 147,686,994 and 323,715,240

Step by Step Solution

1. Step 1: Write the proportion equation
   147,686,994 : 323,715,240 = 323,715,240 : x
2. Step 2: Convert to fraction form
   147,686,994/323,715,240 = 323,715,240/x
3. Step 3: Cross multiply
   147,686,994x = 323,715,240 × 323,715,240
4. Step 4: Simplify right side
   147,686,994x = 104,791,556,608,257,600
5. Step 5: Solve for x
   x = 104,791,556,608,257,600/147,686,994
6. Step 6: Final answer
   x = 709,551,692.87