Finding the Third Proportional to 142,964,106 and 312,146,090

Step by Step Solution

1. Step 1: Write the proportion equation
   142,964,106 : 312,146,090 = 312,146,090 : x
2. Step 2: Convert to fraction form
   142,964,106/312,146,090 = 312,146,090/x
3. Step 3: Cross multiply
   142,964,106x = 312,146,090 × 312,146,090
4. Step 4: Simplify right side
   142,964,106x = 97,435,181,502,288,096
5. Step 5: Solve for x
   x = 97,435,181,502,288,096/142,964,106
6. Step 6: Final answer
   x = 681,535,975.91