Finding the Third Proportional to 430,506 and 896,417.50

Step by Step Solution

1. Step 1: Write the proportion equation
   430,506 : 896,417.50 = 896,417.50 : x
2. Step 2: Convert to fraction form
   430,506/896,417.50 = 896,417.50/x
3. Step 3: Cross multiply
   430,506x = 896,417.50 × 896,417.50
4. Step 4: Simplify right side
   430,506x = 803,564,334,306.25
5. Step 5: Solve for x
   x = 803,564,334,306.25/430,506
6. Step 6: Final answer
   x = 1,866,557.80