Finding the Third Proportional to 715,423.50 and 1,516,140

Step by Step Solution

1. Step 1: Write the proportion equation
   715,423.50 : 1,516,140 = 1,516,140 : x
2. Step 2: Convert to fraction form
   715,423.50/1,516,140 = 1,516,140/x
3. Step 3: Cross multiply
   715,423.50x = 1,516,140 × 1,516,140
4. Step 4: Simplify right side
   715,423.50x = 2,298,680,499,600
5. Step 5: Solve for x
   x = 2,298,680,499,600/715,423.50
6. Step 6: Final answer
   x = 3,213,034.66