Finding the Third Proportional to 70,905,280 and 154,233,816

Step by Step Solution

1. Step 1: Write the proportion equation
   70,905,280 : 154,233,816 = 154,233,816 : x
2. Step 2: Convert to fraction form
   70,905,280/154,233,816 = 154,233,816/x
3. Step 3: Cross multiply
   70,905,280x = 154,233,816 × 154,233,816
4. Step 4: Simplify right side
   70,905,280x = 23,788,069,997,921,856
5. Step 5: Solve for x
   x = 23,788,069,997,921,856/70,905,280
6. Step 6: Final answer
   x = 335,490,812.50