Finding the Third Proportional to 30,930 and 46,681.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,930 : 46,681.50 = 46,681.50 : x
2. Step 2: Convert to fraction form
   30,930/46,681.50 = 46,681.50/x
3. Step 3: Cross multiply
   30,930x = 46,681.50 × 46,681.50
4. Step 4: Simplify right side
   30,930x = 2,179,162,442.25
5. Step 5: Solve for x
   x = 2,179,162,442.25/30,930
6. Step 6: Final answer
   x = 70,454.65