Finding the Third Proportional to 156,930 and 345,528

Step by Step Solution

1. Step 1: Write the proportion equation
   156,930 : 345,528 = 345,528 : x
2. Step 2: Convert to fraction form
   156,930/345,528 = 345,528/x
3. Step 3: Cross multiply
   156,930x = 345,528 × 345,528
4. Step 4: Simplify right side
   156,930x = 119,389,598,784
5. Step 5: Solve for x
   x = 119,389,598,784/156,930
6. Step 6: Final answer
   x = 760,782.51