Finding the Third Proportional to 142,752 and 307,428

Step by Step Solution

1. Step 1: Write the proportion equation
   142,752 : 307,428 = 307,428 : x
2. Step 2: Convert to fraction form
   142,752/307,428 = 307,428/x
3. Step 3: Cross multiply
   142,752x = 307,428 × 307,428
4. Step 4: Simplify right side
   142,752x = 94,511,975,184
5. Step 5: Solve for x
   x = 94,511,975,184/142,752
6. Step 6: Final answer
   x = 662,071.11