Finding the Third Proportional to 291,213 and 452,371.50

Step by Step Solution

1. Step 1: Write the proportion equation
   291,213 : 452,371.50 = 452,371.50 : x
2. Step 2: Convert to fraction form
   291,213/452,371.50 = 452,371.50/x
3. Step 3: Cross multiply
   291,213x = 452,371.50 × 452,371.50
4. Step 4: Simplify right side
   291,213x = 204,639,974,012.25
5. Step 5: Solve for x
   x = 204,639,974,012.25/291,213
6. Step 6: Final answer
   x = 702,715.79