Finding the Third Proportional to 307,460.81 and 674,152.88

Step by Step Solution

1. Step 1: Write the proportion equation
   307,460.81 : 674,152.88 = 674,152.88 : x
2. Step 2: Convert to fraction form
   307,460.81/674,152.88 = 674,152.88/x
3. Step 3: Cross multiply
   307,460.81x = 674,152.88 × 674,152.88
4. Step 4: Simplify right side
   307,460.81x = 454,482,098,870.77
5. Step 5: Solve for x
   x = 454,482,098,870.77/307,460.81
6. Step 6: Final answer
   x = 1,478,178.94