Finding the Third Proportional to 306,484.50 and 460,146

Step by Step Solution

1. Step 1: Write the proportion equation
   306,484.50 : 460,146 = 460,146 : x
2. Step 2: Convert to fraction form
   306,484.50/460,146 = 460,146/x
3. Step 3: Cross multiply
   306,484.50x = 460,146 × 460,146
4. Step 4: Simplify right side
   306,484.50x = 211,734,341,316
5. Step 5: Solve for x
   x = 211,734,341,316/306,484.50
6. Step 6: Final answer
   x = 690,848.45