Finding the Third Proportional to 162,870 and 249,148.69

Step by Step Solution

1. Step 1: Write the proportion equation
   162,870 : 249,148.69 = 249,148.69 : x
2. Step 2: Convert to fraction form
   162,870/249,148.69 = 249,148.69/x
3. Step 3: Cross multiply
   162,870x = 249,148.69 × 249,148.69
4. Step 4: Simplify right side
   162,870x = 62,075,068,482.97
5. Step 5: Solve for x
   x = 62,075,068,482.97/162,870
6. Step 6: Final answer
   x = 381,132.61