Finding the Third Proportional to 156,780 and 370,030

Step by Step Solution

1. Step 1: Write the proportion equation
   156,780 : 370,030 = 370,030 : x
2. Step 2: Convert to fraction form
   156,780/370,030 = 370,030/x
3. Step 3: Cross multiply
   156,780x = 370,030 × 370,030
4. Step 4: Simplify right side
   156,780x = 136,922,200,900
5. Step 5: Solve for x
   x = 136,922,200,900/156,780
6. Step 6: Final answer
   x = 873,339.72