Finding the Third Proportional to 156,049,771.50 and 243,009,648

Step by Step Solution

1. Step 1: Write the proportion equation
   156,049,771.50 : 243,009,648 = 243,009,648 : x
2. Step 2: Convert to fraction form
   156,049,771.50/243,009,648 = 243,009,648/x
3. Step 3: Cross multiply
   156,049,771.50x = 243,009,648 × 243,009,648
4. Step 4: Simplify right side
   156,049,771.50x = 59,053,689,021,083,904
5. Step 5: Solve for x
   x = 59,053,689,021,083,904/156,049,771.50
6. Step 6: Final answer
   x = 378,428,551.70