Finding the Third Proportional to 370,627.50 and 812,172

Step by Step Solution

1. Step 1: Write the proportion equation
   370,627.50 : 812,172 = 812,172 : x
2. Step 2: Convert to fraction form
   370,627.50/812,172 = 812,172/x
3. Step 3: Cross multiply
   370,627.50x = 812,172 × 812,172
4. Step 4: Simplify right side
   370,627.50x = 659,623,357,584
5. Step 5: Solve for x
   x = 659,623,357,584/370,627.50
6. Step 6: Final answer
   x = 1,779,747.48