Finding the Third Proportional to 318,731,748 and 468,983,300

Step by Step Solution

1. Step 1: Write the proportion equation
   318,731,748 : 468,983,300 = 468,983,300 : x
2. Step 2: Convert to fraction form
   318,731,748/468,983,300 = 468,983,300/x
3. Step 3: Cross multiply
   318,731,748x = 468,983,300 × 468,983,300
4. Step 4: Simplify right side
   318,731,748x = 219,945,335,678,889,984
5. Step 5: Solve for x
   x = 219,945,335,678,889,984/318,731,748
6. Step 6: Final answer
   x = 690,064,096.40