Finding the Third Proportional to 655,857 and 997,393.50

Step by Step Solution

1. Step 1: Write the proportion equation
   655,857 : 997,393.50 = 997,393.50 : x
2. Step 2: Convert to fraction form
   655,857/997,393.50 = 997,393.50/x
3. Step 3: Cross multiply
   655,857x = 997,393.50 × 997,393.50
4. Step 4: Simplify right side
   655,857x = 994,793,793,842.25
5. Step 5: Solve for x
   x = 994,793,793,842.25/655,857
6. Step 6: Final answer
   x = 1,516,784.59