Finding the Third Proportional to 156,730 and 333,428

Step by Step Solution

1. Step 1: Write the proportion equation
   156,730 : 333,428 = 333,428 : x
2. Step 2: Convert to fraction form
   156,730/333,428 = 333,428/x
3. Step 3: Cross multiply
   156,730x = 333,428 × 333,428
4. Step 4: Simplify right side
   156,730x = 111,174,231,184
5. Step 5: Solve for x
   x = 111,174,231,184/156,730
6. Step 6: Final answer
   x = 709,336.00