Finding the Third Proportional to 612,218 and 1,429,631.50

Step by Step Solution

1. Step 1: Write the proportion equation
   612,218 : 1,429,631.50 = 1,429,631.50 : x
2. Step 2: Convert to fraction form
   612,218/1,429,631.50 = 1,429,631.50/x
3. Step 3: Cross multiply
   612,218x = 1,429,631.50 × 1,429,631.50
4. Step 4: Simplify right side
   612,218x = 2,043,846,225,792.25
5. Step 5: Solve for x
   x = 2,043,846,225,792.25/612,218
6. Step 6: Final answer
   x = 3,338,428.84